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Physical Measurement Laboratory

Office of Weights and Measures

State Metrology Laboratories

For a complete directory of Weights and Measures Officials and Metrologists in the US and Territories, you can download the list here.

Alabama
Mailing Address Alabama Weights and Measures Laboratory Weights and Measures Laboratory 1445 Federal Drive Montgomery, AL 36107	Shipping Address Same as Mailing Address.
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	michael.bridges [at] agi.alabama.gov (Michael Bridges) (334) 240-3729 wes.seals [at] agi.alabama.gov (Wes Seals) (334) 240-7136 james.little [at] agi.alabama.gov (James Little) (334) 240-7138 Phone: (334) 240-7133 (Office) Fax: (334) 240-7175
Alaska
Mailing Address State of Alaska Metrology Laboratory 12050 Industry Way Bldg "O" #6 Anchorage, AK 99515	Shipping Address Same as Mailing Address. Return to Top of Page
2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	travis.garding [at] alaska.gov (Travis Garding) (907) 365-1222 roger.holland [at] alaska.gov (Roger Holland) (907) 365-1233
Arizona
Mailing Address Arizona Department of Agriculture - Metrology Laboratory 4425 West Olive Avenue, Suite 134 Glendale, AZ 85302-3844	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	bsellers [at] azda.gov (Brian Sellers) (602) 771-4938 mnieves [at] azda.gov (Mauro Nieves) (602) 771-4928 E-mail: metrology [at] azda.gov (metrology[at]azda[dot]gov) Phone: (602) 771-4938
Arkansas
Mailing Address Arkansas Bureau of Standards 4608 W 61st Street Little Rock, AR 72209-2408	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	jill.franke [at] agriculture.arkansas.gov (Jill Franke) (501) 219-6334 kayla.hankins [at] agriculture.arkansas.gov (Kayla Hankins) (501) 570-1159 nikhil.soman [at] agriculture.arkansas.gov (Nikhil Soman) (501) 570-1156 Brian.Terry [at] agriculture.arkansas.gov (Brian Terry) (501) 570-1159 kyla.williams [at] arkansas.gov (Kyla Williams) (501) 570-1159 Phone: (501) 570-1159
California
Mailing Address State of California Metrology Laboratory Division of Measurement Standards 6790 Florin Perkins Road, Suite 100 Sacramento, CA 95828	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	anthony.gruneisen [at] cdfa.ca.gov (Tony Gruneisen) (916) 229-4858 toni.bulai [at] cdfa.ca.gov (Toni Bulai) (916) 229-3022 Demielle.Noll-Tennin [at] cdfa.ca.gov (Demielle Noll-Tennin) (916) 229-3036 E-mail: dms [at] cdfa.ca.gov (dms[at]cdfa[dot]ca[dot]gov) Phone: (916) 229-3000
Colorado
Mailing Address Colorado Department of Agriculture - Metrology Lab 300 South Technology Court Broomfield, CO 80021	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	kate.smetana [at] state.co.us (Kate Smetana) (303) 869-9241 tiffany.brigner [at] state.co.us (Tiffany Brigner) (303) 869-9272 andrew.shopes [at] state.co.us (Andrew Shopes) (303) 869-9270 aaron.nowotny [at] state.co.us (Aaron Nowotny) (303) 869-9242 Phone: (303) 869-9240 (Lab)
Connecticut
Mailing Address Connecticut Food and Standards Division Dept. of Consumer Protection 450 Columbus Boulevard Suite #901 Hartford, CT 06103-1840	Shipping Address Metrology Lab 9 Windsor Avenue Windsor, CT 06095-4312 Return to Top of Page
2019 OWM Certificate of Metrological Traceability PDF 2020 OWM Certificate of Metrological Traceability PDF No Certificate (pending staff training)	christopher.david [at] ct.gov (Chris David) (860) 806-0104 frank.greene [at] ct.gov (Frank Greene) (860) 713-6160 Fax: (860) 706-1236
District of Columbia
Mailing Address District of Columbia Weights, Measures, and Markets Branch 1110 U Street S.E. Washington, DC 20001	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate	Lab Closed See State Directors List
Delaware
Mailing Address Delaware Department of Agriculture Weights and Measures Section 2320 S. DuPont Highway Dover, DE 19901-5515	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate	Lab Closed See State Directors List
Florida
Mailing Address Florida Metrology Laboratory 3125 Conner Boulevard, Lab 2 Tallahassee, FL 32399	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological TraceabilityPDF See NVLAP also.	chambray.dowdell [at] fdacs.gov (Chambray Dowdell) (850) 410-3667 Megan.Money [at] FDACS.gov (Megan Money) (850) 921-1572 michael.kruse [at] FDACS.gov (Mike Kruse) (850) 921-1585 anthony.oliveri [at] fdacs.gov (Anthony Oliveri) (850) 921-1573 Phone: (850) 921-1580
Georgia
Mailing Address Georgia Department of Agriculture Metrology Laboratory P.O. Box 1507 Tifton, GA 31793	Shipping Address 3150 U.S. Highway 41 South Tifton, GA 31794 Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	stan.diffie [at] agr.georgia.gov (Stan Diffie) (229) 386-4120 john.ross.plourde [at] agr.georgia.gov (John Plourde) (229) 386-3601 Phone: (229) 386-3601 Fax: (229) 386-3365
Hawaii
Mailing Address Hawaii Measurement Standards Laboratory Quality Assurance Division 1851 Auiki Street Honolulu, HI 96819	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF	Michael.Tang [at] Hawaii.gov (Michael Tang) Phone: (808) 832-0682 Fax: (808) 832-0683
Idaho
Mailing Address Idaho Weights & Measures Metrology Laboratory Bureau of Weights and Measures P.O. Box 7249 Boise, ID 83707	Shipping Address 2216 Kellogg Lane Boise, ID 83712-8265 Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	david.bennet [at] isda.idaho.gov (David Bennett) (208) 332-8691 stacie.ybarra [at] isda.idaho.gov (Stacie Ybarra) (208) 332-8692 Phone: (208) 332-8691 Fax: (208) 334-2378
Illinois
Mailing Address Illinois Department of Agriculture Bureau of Weights and Measures Metrology Laboratory 801 Sangamon Avenue East Springfield, IL 62702-9281	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	austin.boyett [at] illinois.gov (Austin Boyett) (217) 785-8530 karl.cunningham [at] illinois.gov (Karl Cunningham) (217) 785-8482 john.satterlee [at] illinois.gov (John Satterlee) (217) 785-8480 stephanie.somers [at] illinois.gov (Stephanie Somers) (217) 785-8530 Phone: (217) 785-8480 Fax: (217) 785-3136
Indiana
Mailing Address Indiana State Department of Health Weights and Measures Laboratory 2525 North Shadeland Avenue Building 30 Suite D3 Indianapolis, IN 46219-1791	Shipping Address Same as Mailing Address. Return to Top of Page
2021 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability (Conditional) PDF	HWickersham [at] isdh.in.gov (Howard Wickersham) k.scott [at] health.in.gov (Katelyn Scott) WGeisler [at] health.in.gov (William R. Geisler) E-mail: metrology [at] health.in.gov (metrology[at]health[dot]in[dot]gov) Phone: (317) 356-7078 Fax: (317) 351-2877
Iowa
Mailing Address Iowa Department of Agriculture & Land Stewardship 2230 South Ankeny Boulevard Ankeny, IA 50023	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate	Lab Closed See State Directors List
Kansas
Mailing Address Kansas Metrology Laboratory 2004 Research Park Circle Manhattan, KS 66502	Shipping Address Same as Mailing Address. Return to Top of Page
2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF	kevin.uphoff [at] ks.gov (Kevin Uphoff) (785) 564-7445 ClarenceEvan.johnson [at] ks.gov (Evan Johnson) (785) 564-7447 E-mail: kda.metrology [at] ks.gov (kda[dot]metrology[at]ks[dot]gov) Phone: (785) 564-7477
Kentucky
Mailing Address Kentucky Regulations and Inspections 107 Corporate Drive Frankfort, KY 40601-8311	Shipping Address Same as Mailing Address. Return to Top of Page
2022 OWM Certificate of Metrological Traceability PDF 2023 OWM Certificate of Metrological Traceability PDF No Certificate (pending staff training)	chester.watson [at] ky.gov (Chester Watson) jason.glass [at] ky.gov (Jason Glass) Phone: (502) 573-0282 Fax: (502) 573-0303
Los Angeles County
Mailing Address Los Angeles County Department of Agriculture Weights and Measures Metrology Laboratory 11012 Garfield Avenue South Gate, CA 90280-7504	Shipping Address Same as Mailing Address. Return to Top of Page
2019 OWM Certificate of Metrological Traceability PDF No Certificate (pending laboratory renovation)	MetLab [at] acwm.lacounty.gov (Lina Ng) MetLab [at] acwm.lacounty.gov (Jacky Cheng) E-mail: metlab [at] acwm.lacounty.gov (MetLab[at]acwm[dot]lacounty[dot]gov) Phone: (562) 622-0419 Fax: (562) 861-0278
Louisiana
Mailing Address Louisiana Department of Agriculture and Forestry Metrology Laboratory Weights and Measures Division 5825 Florida Boulevard Suite 5000 Baton Rouge, LA 70806-4259	Shipping Address 5825 Florida Boulevard Metrology Laboratory Baton Rouge, LA 70806-4259 Return to Top of Page
2023 to 2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF	wcorley [at] ldaf.la.gov (Whitney Corley) (225) 922-1381 jadair [at] ldaf.la.gov (Jennifer Adair) (225) 922-2907 tholmes [at] ldaf.la.gov (Tyler Holmes) (225) 922-1380 E-mail: metrologylab [at] ldaf.la.gov (metrologylab[at]ldaf[dot]la[dot]gov) Phone: (225) 922-1381 Fax: (225) 923-4877
Maine
Mailing Address Maine Metrology Laboratory 333 Cony Road Augusta, ME 04330	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	Bradford.Bachelder [at] maine.gov (Bradford Bachelder) Phone: (207) 287-7587
Maryland
Mailing Address Maryland Department of Agriculture - Weights and Measures Calibration Laboratory 50 Harry S. Truman Parkway Annapolis, MD 21401-8960	Shipping Address Same as Mailing Address. Return to Top of Page
2023 to 2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF	Tong.Hsu [at] maryland.gov (Tong Hsu) (410) 841-5790 / (410) 841-2746 emily.hoyt1 [at] maryland.gov (Emily Hoyt) (410) 841-5790 Phone: (410) 841-5790 Fax: (410) 841-2765
Massachusetts
Mailing Address Massachusetts Division of Standards Metrology Laboratory 250 Eliot Street, Suite 10-D Ashland, MA 01721	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	ray.costa [at] mass.gov (Raymond Costa) (617) 947-7584 hain.setow [at] mass.gov (Hain Wan Setow) (617) 947-4630 Lab Phone: (508) 532-1200 Lab Direct Line: (508) 532-1201
Michigan
Mailing Address Michigan Department of Agriculture and Rural Development E.C. Heffron Metrology Laboratory 940 Venture Lane Williamston, MI 48895-9028	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	VanBurenC9 [at] michigan.gov (Craig VanBuren) (517) 655-8202 dewaelec [at] michigan.gov (Craig DeWaele) (517) 643-5977 fergusons9 [at] michigan.gov (Scott Ferguson) (517) 655-8202 galvans [at] michigan.gov (Steve Galvan) (517) 655-8202 hartmanr4 [at] michigan.gov (Ryanne Hartman) (517) 655-8202 Jonesn [at] michigan.gov (Dr. Neil Jones) (517) 655-7225 mccormickc2 [at] michigan.gov (Chris McCormick) (517) 655-8202 santinin [at] michigan.gov (Nicholas Santini) (517) 655-7229 wellmanc1 [at] michigan.gov (Christopher Wellman) (517) 643-5351 Phone: (517) 655-8202 (Office) Fax: (517) 655-8303
Minnesota
Mailing Address Minnesota Metrology Laboratory - Division of Weights & Measures 14305 Southcross Drive W Suite 150 Burnsville, MN 55306-7011	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability (Amended 2025-01-30) PDF See NVLAP also.	valare.falkner [at] state.mn.us (Valare Falkner) (651) 539-1567 Benjamin.FitzRysler [at] state.mn.us (Benj FitzRysler) (651) 539-1569 calvin.crouch [at] state.mn.us (Calvin Crouch) (651) 539-1565 eric.e.johnson [at] state.mn.us (Eric Johnson) (651) 539-1560 Halie.LaTourelle [at] state.mn.us (Halie LaTourelle) (651) 539-1006 anna.pierce [at] state.mn.us (Anna Pierce) (651) 539-1562 halie.latourelle [at] state.mn.us (Nick Santori) (651) 539-1554 E-mail: mnlabcontact [at] commerce.state.mn.us (mnlabcontact[at]commerce[dot]state[dot]mn[dot]us) Phone: (651) 539-1555 (Office) Fax: (952) 435-0404
Mississippi
Mailing Address Mississippi Department of Agriculture & Commerce Metrology Lab 1000-A ASU Drive, Bldg #10 Lorman, MS 39096	Shipping Address Same as Mailing Address. Return to Top of Page
2019 OWM Certificate of Metrological Traceability PDF 2020 OWM Certificate of Metrological Traceability PDF No Certificate (pending staff training)	gene [at] mdac.ms.gov (Gene Robertson) (601) 359-1102 EricaG [at] mdac.ms.gov (Erica Griffin) (601) 877-3802 Phone: (601) 877-3802 Fax: (601) 877-3872
Missouri
Mailing Address Missouri Department of Agriculture Weights, Measures & Consumer Protection Division, Metrology Laboratory P.O. Box 630 Jefferson City, MO 65102	Shipping Address 1616 Missouri Boulevard Jefferson City, MO 65109 Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	Johnny.bell [at] mda.mo.gov (John Bell) (573) 751-3440 houston.naugher [at] mda.mo.gov (Houston Naugher) (573) 751-3105 Phone: (573) 751-3440 Fax: (573) 751-0281
Montana
Mailing Address Montana Bureau of Weights and Measures P.O. Box 200516 Helena, MT 59620-0516	Shipping Address 3806 US-12 / 287 East Helena, MT 59635 Return to Top of Page
2023 OWM Certificate of Metrological Traceability PDF 2024 OWM Certificate of Metrological Traceability PDF (Amended 2024-01-30 for six-month extension from January to July)	dafraser [at] mt.gov (David Fraser) (406) 461-4168 bricks [at] mt.gov (Brent Ricks) (406) 841-2321 cell: (406) 202-2755 Fax: (406) 443-8163
Nebraska
Mailing Address Nebraska Standards Laboratory 3721 West Cuming Street Lincoln, NE 68524	Shipping Address Same as Mailing Address. Return to Top of Page
2023 to 2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF	Joel.Lavicky [at] nebraska.gov (Joel Lavicky) Phone: (402) 471-2087
Nevada
Mailing Address State of Nevada Metrology Laboratory 2150 Frazer Avenue Sparks, NV 89431	Shipping Address 405 South 21st Street Sparks, NV 89431 Return to Top of Page
2023 to 2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF See NVLAP also.	jkellames [at] agri.nv.gov (James Kellames) (775) 353-3788 kriske [at] agri.nv.gov (Kiara Saunders) (775) 353-3794 Email: metrology [at] agri.nv.gov (metrology[at]agri[dot]nv[dot]gov) Phone: (775) 353-3788 Fax: (775) 353-3798
New Hampshire
Mailing Address New Hampshire Metrology Laboratory 25 Capitol Street Room 31 Concord, NH 03301 Physical Location: Division of Weights & Measures 25 Capitol Street Concord, NH 03301	Shipping Address 25 Capitol Street Concord, NH 03301 Return to Top of Page
2016 to 2017 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF (Amended 2025-01-31)	john.f.abasto [at] agr.nh.gov (John Abasto) richard.p.cote [at] agr.nh.gov (Richard Cote) Phone: (603) 271-0894 Fax: (603) 271-1109
New Jersey
Mailing Address State of New Jersey Office of Weights and Measures, Metrology Laboratory 1261 Routes 1 & 9 South Avenel, NJ 07001-1647	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	SzpondR [at] dca.njoag.gov (Ray Szpond) (732) 621-2060 cecerem [at] dca.njoag.gov (Michael Cecere) (732) 621-2554 benavidesf [at] dca.njoag.gov (Francia Benavides) (732) 621-2552 IsazaF [at] dca.njoag.gov (Federico Isaza) (732) 621-2090 BotelhoE [at] dca.njoag.gov (Ethan Botelho) (732) 621-2803 Phone: (732) 815-7800 / (732)815-4840 Fax: (732) 382-5298
New Mexico
Mailing Address New Mexico Department of Agriculture Standards and Consumer Services MSC 3-LD PO Box 30005 Las Cruces, NM 88003-8005	Shipping Address 973 Agriculture Way Las Cruces, NM 88003 Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF No Certificate (pending staff training) See NVLAP also.	civey [at] nmda.nmsu.edu (Clay Ivey) jstephens [at] nmda.nmsu.edu (Jason Stephens) Phone: (575) 646-1551 Fax: (575) 646-2361
New York
Mailing Address New York State Bureau of Weights and Measures 10B Airline Drive Albany, NY 12235-1000	Shipping Address 6 Harriman Campus Road Albany, NY 12206 Return to Top of Page
2023 to 2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF See NVLAP also.	Michael.Lejeune [at] agriculture.ny.gov (Michael LeJeune) Jonathan.Fox [at] agriculture.ny.gov (Jonathan Fox) jeremy.best [at] agriculture.ny.gov (Jeremy Best) james.willis [at] agriculture.ny.gov (James Willis) Phone: (518) 457-3146 Fax: (518) 457-2552
North Carolina
Mailing Address North Carolina Department of Agriculture and Consumer Services Standards Laboratory 1051 Mail Service Center Raleigh, NC 27699-1051	Shipping Address Standards Laboratory 4400 Reedy Creek Road Raleigh, NC 27607 Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF See NVLAP also.	Sharon.Woodard [at] ncagr.gov (Sharon Woodard) (984) 236-4802 robert.rogers [at] ncagr.gov (Robert Rogers) (984) 236-4811 ed.stevens [at] ncagr.gov (Ed Stevens) (984) 236-4804 daniel.zhang [at] ncagr.gov (Daniel Zhang) (984) 236-4805 Phone: (984) 236-4800 Fax: (919) 831-1325
North Dakota
Mailing Address North Dakota Public Service Commission 605 E. Boulevard Avenue - Dept. 408 State Capitol 12th Floor Bismark, ND 58505-0480	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate Lab Closed	See State Directors List
Ohio
Mailing Address Ohio Department of Agriculture 8995 East Main Street Bldg 5 Reynoldsburg, OH 43068-3398	Shipping Address Same as Mailing Address.
2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF See NVLAP also.	Tom.Buck [at] agri.ohio.gov (Tom Buck) ken.johnson [at] agri.ohio.gov (Ken Johnson) Daniel.Walker [at] Agri.ohio.gov (Daniel Walker) Keith.Crider [at] agri.ohio.gov (Keith Crider) E-mail: metrology [at] agri.ohio.gov (metrology[at]agri[dot]ohio[dot]gov) Phone: (614) 728-6290 Fax: (614) 728-6424
Oklahoma
Mailing Address Oklahoma Bureau of Standards 2800 North Lincoln Boulevard Oklahoma City, OK 73105	Shipping Address Same as Mailing Address. Return to Top of Page
2022 OWM Certificate of Metrological Traceability PDF No Certificate (pending staff training)	william.krivanek [at] ag.ok.gov (William Krivanek) termelia.hogg [at] ag.ok.gov (Termelia Hogg) Phone: (405) 522-5459
Oregon
Main Laboratory, Mail, Small shipments Oregon Department of Agriculture Weights and Measures Program 635 Capitol Street NE Suite 100 Salem, OR 97301-2532	Large Shipments, Weights and Provers 151 Hawthorne Avenue, NE Salem, OR 97301 (Not routinely staffed. Call Main Laboratory for access and deliveries.)
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF (Amended 2025-01-30) See NVLAP also.	aaron.aydelotte [at] oda.oregon.gov (Aaron Aydelotte) Office: (503) 986-4669 Cell: 503-510-6739 raymond.nekuda [at] oda.oregon.gov (Ray Nekuda) Office: (503) 986-4672 Cell: 503-510-2310 Phone: (503) 986-4669 Fax: (503) 986-4784
Pennsylvania
Mailing Address Pennsylvania Standards Lab 2221 Forster Street Rm G-44A Harrisburg, PA 17125	Shipping Address Same as Mailing Address. Return to Top of Page
2024 to 2025 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF See NVLAP also.	jgownley [at] pa.gov (James Gownley) (717) 787-4707 duclaycomb [at] pa.gov (Dustin Claycomb) (717) 525-5829 cdrupp [at] pa.gov (Chris Drupp) (717) 525-5826 riradel [at] pa.gov (Richard Radel), Jr (717) 525-5830 kensingh [at] pa.gov (Kenrick Singh) (717) 525-5828 lincwillia [at] pa.gov (Linc Williams) (717) 525-7109 Phone: (717) 787-0937 Fax: (717) 705-0882
Puerto Rico
Mailing Address Puerto Rico Department of Consumer Affairs 140 Federico Costas Street San Juan, PR 00918	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate	abrodriguez [at] daco.gobierno.pr (Abner Rodriguez-Valentin) Phone: (787) 725-4414 Fax: (787) 723-3491
Rhode Island
Mailing Address Rhode Island Department of Labor 610 Manton Avenue Providence, RI 02909	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate	Lab Closed See State Directors List
South Carolina
Mailing Address South Carolina Department of Agriculture D. Leslie Tindal Metrology Laboratory 129 Ballard Court West Columbia, SC 29172	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF	tjones [at] scda.sc.gov (Timothy Jones ()803) 734-3266 triser [at] scda.sc.gov (Tracy Riser) (803) 734-2375 ksherrick [at] scda.sc.gov (Kristin Sherrick) (803) 734-7908 czegilla [at] scda.sc.gov (Candice Zegilla) (803) 734-3355 Phone: (803) 253-4052
South Dakota
Mailing Address South Dakota State Metrology Laboratory 1100 Otter Road, Building D Sturgis, SD 57785	Shipping Address Same as Mailing Address Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF (Amended 20250130) See NVLAP also.	Ron.Peterson [at] state.sd.us (Ron Peterson) (605) 280-4572 Email: DPSWM [at] state.sd.us (DPSWM[at]state[dot]sd[dot]us) Phone: (605) 347-7541
Tennessee
Mailing Address Tennessee Department of Agriculture Julius T. Johnson Metrology Laboratory Ellington Agriculture Center 5203 Marchant Drive Nashville, TN 37204	Shipping Address Same as Mailing Address. Return to Top of Page
2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability (Amended 2024-07-15) PDF	mark.hanes [at] tn.gov (Mark Hanes) (615) 837-5145 Nicholas.Andersen [at] tn.gov (Nicholas Andersen) (615) 253-4426 luis.rendon [at] tn.gov (Luis Rendon) (615) 532-7678 adam.travis [at] tn.gov (Adam Travis) (615) 313-4986 Rong.Zhang [at] tn.gov (Rong Zhang) (615) 837-5158 Email: tn.metrology [at] tn.gov (tn[dot]metrology[at]tn[dot]gov) Phone: (615) 837-5159 Fax: (615) 837-5015
Texas
Mailing Address Texas Department of Agriculture Giddings Metrology Laboratory P.O. Box 1518 Giddings, TX 78942	Shipping Address 1258 CR 226 Giddings, TX 78942 Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	lisa.corn [at] texasagriculture.gov (Lisa Corn) heather.exner [at] texasagriculture.gov (Heather Exner) shaunna.keilberg [at] TexasAgriculture.gov (Shauna Keilberg) Keri.Schatte [at] texasagriculture.gov (Keri Schatte) kirt.weyand [at] texasagriculture.gov (Kirt Weyand) Email: metrologylab [at] texasagriculture.gov (metrologylab[at]texasagriculture[dot]gov) Phone: (979) 542-3231 Fax: (888) 205-7741
U.S. Department of Agriculture, Agricultural Marketing Service, Federal Grain Inspection Service (USDA, AMS, FGIS)
Mailing Address USDA/AMS/FGIS Master Scale Depot 5800 West 69th Street Chicago, IL 60638	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	oscar.kc.porter [at] usda.gov (Oscar Porter) (708) 514-9043
Utah
Mailing Address Utah Metrology Laboratory 4315 S 2700 W TSOB South Bldg, Floor 2 Taylorsville, UT 84129-2128	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 to 2026 OWM Certificate of Metrological Traceability PDF (Amended 2025-02-04)	brigby [at] utah.gov (Bill Rigby) (801) 982-2267 mkofford [at] utah.gov (Miland Kofford) (801) 982-2261 Phone: (801) 982-2267 Fax: (801) 359-0213
Vermont
Mailing Address State of Vermont Metrology Laboratory 163 Administration Drive Randolph Center, VT 05061	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF	marc.paquette [at] vermont.gov (Marc Paquette) (802) 793-6744 scott.dolan [at] vermont.gov (Scott Dolan) (802) 522-5415
Virgin Islands
Mailing Address VI Department of Licensing and Consumer Affairs Golden Rock Shopping Center Christiansted, St. Croix, VI	Shipping Address Same as Mailing Address. Return to Top of Page
No Certificate	Lab Closed See State Directors List
Virginia
Mailing Address Virginia Department of Agriculture Metrology Laboratory 600 North 4th Street Richmond, VA 23219	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF See NVLAP also.	linda.jones [at] vdacs.virginia.gov (Linda Jones) armeta.robinson [at] vdacs.virginia.gov (Armeta Robinson) william.scott [at] vdacs.virginia.gov (William Scott) Phone: (804) 786-0479 Fax: (804) 371-0206
Washington
Mailing Address Washington State Department of Agriculture Weights and Measures Program (WSDA) Metrology Laboratory P.O. Box 42560 Olympia, WA 98504-2560	Shipping Address WA State Department of Agriculture (WSDA) Metrology Laboratory 2747 29th Avenue SW, Ste B Tumwater, WA 98512-6104 Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF (Amended 20250130) See NVLAP also.	lgerman [at] agr.wa.gov (Leslie German) Phone: (360) 764-0199
West Virginia
Mailing Address West Virginia Division of Labor, Weights & Measures Metrology Laboratory WV Weights & Measures 570 McCorkle Avenue SW St. Albans, WV 25177-1795	Shipping Address Same as Mailing Address. Return to Top of Page
2024 OWM Certificate of Metrological Traceability PDF 2025 OWM Certificate of Metrological Traceability PDF	tory.d.brewer [at] wv.gov (Tory Brewer) (304) 380-9260 jacob.l.woodrum [at] wv.gov (Jacob Woodrum) (304) 352-1312 E-mail: weights [at] wv.gov (weights[at]wv[dot]gov) Phone: (304) 722-0602 Fax: (304) 722-0605
Wisconsin
Mailing Address Wisconsin Weights and Measures Laboratory 3601 Galleon Run Madison, WI 53718-6921	Shipping Address Same as Mailing Address. Return to Top of Page
2022 to 2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF	justin.lien [at] wisconsin.gov (Justin Lien) (608) 224-4913 paul.masterson [at] wisconsin.gov (Paul Masterson) (608) 224-4910 ronald.depouw [at] wisconsin.gov (Ronald DePouw) (608) 224-4911 BradleyA.Wing [at] wisconsin.gov (Bradley Wing) (608) 224-4914 E-mail: DATCPMetrologyLab [at] wisconsin.gov (DATCPMetrologyLab[at]wisconsin[dot]gov) Phone: (608) 224-4910 Fax: (608) 224-4912
Wyoming
Mailing Address Wyoming Department of Agriculture 6607 Campstool Road Cheyenne, WY 82002	Shipping Address Same as Mailing Address. Return to Top of Page
2023 OWM Certificate of Metrological Traceability PDF 2024 to 2025 OWM Certificate of Metrological Traceability PDF	robert.weidler [at] wyo.gov (Robert Weidler) (307) 777-7556 todd.stiles [at] wyo.gov (Todd Stiles) (307) 777-3354 Phone: (307) 777-7556 Fax: (307) 777-1943

Contacts

General Information - OWM

owm@nist.gov

Created April 20, 2022, Updated April 29, 2025

Office of Weights and Measures

State Metrology Laboratories

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