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This is a list of Ohio approved testing laboratories and inspection agencies created in accordance with the provisions of Section 119 OBC. It is intended for use by certified building departments wherever the OBC requires the testing, inspection, labeling or grademarking of materials or assemblies. Whenever a certified building department receives a report from a laboratory or inspection agency or is required by this code to check for labeling or grademarking, the building department must review this appendix to see if the report, label or grademark is from one of the approved agencies listed herein.

Alt & Witzig Engineering, Inc.
4105 West 99th Street
Carmel, IN 46032
APA - The Engineered Wood Association1
7011 South 19th Street
P.O. Box 11700
Tacoma, WA 98466
Applied Research Laboratories
5371 N.W. 161st Street
Miami, FL 33014
ATC Associates, Inc.
8989 Herrmann Drive
Suite 300
Columbia, MD 21045
Barr & Prevost Engineering & Testing
5710 Westbourne Avenue
Columbus, OH 43213
BBC & M Engineering, Inc.
Dublin location
6190 Enterprise Court
Dublin, OH 43016
Cincinnati location
11699 Chesterdale Road
Cincinnati, OH 45246
Bowser-Morner Testing Lab, Inc.
4518 Taylorsville Road
P.O. Box 51
Dayton, OH 45424
Canadian Plywood Association2
735 West 15th Street
North Vancouver, B.C., Canada V7M 1T2
CSA International5
178 Rexdale Boulevard
Toronto, Ontario, Canada M9W 1R3
Alberta location
1707 — 94 Street
Edmonton, Alberta, Canada T6N 1E6
British Columbia location
13799 Commerce Parkway
Richmond, (Vancouver), B.C. Canada
V6V 2N9
California location
2805 Barranca Parkway
Irvine, CA 92606
Ohio location (formerly AGA)
8501 East Pleasant Valley Road
Cleveland, OH 44131
Quebec location
865 Rue Ellingham
Point-Claire, Quebec, Canada H9R 5E8
CTL Engineering, Inc.
6777 Engle Road
Building 111, Suite N
Cleveland, OH 44130
Commercial Testing Company
P.O. Box 985
1215 South Hamilton Street
Dalton, GA 30720
DHDC, Inc.
2390 Advanced Business Center Drive
Columbus, OH 43228
DLZ Ohio, Inc.
6121 Huntley Road
Columbus, OH 43229
EDP Geosciences—Division of SME
9375 Chillicothe Road
Kirtland, OH 44094
Engineering Experiment Station7
The Ohio State University
2070 Neil Avenue
Columbus, OH 43210
Entela, Inc.
3033 Madison Avenue S.E.
Grand Rapids, MI 49548
Factory Mutual Research Corporation
1151 Boston-Providence Turnpike
Norwood, MA 02062
Geo-Sci Laboratory, Inc.
110 Blaze Industrial Parkway
Berea, OH 44017
Geotechnical and Materials Engineer, Inc.
3517 Focus Drive
Fort Wayne, IN 46818
Geotechnical Consultants, Inc.
720 Greencrest Drive
Westerville, OH 43081
Guardian Fire Testing Laboratories, Inc.
399 Prospect Avenue
Buffalo, NY 14201
Hardwood Plywood & Veneer Association
P.O. Box 2789
1825 Michael Faraday Drive
Reston, VA 20190
H.C. Nutting Company
611 Lunken Park Drive
Cincinnati, OH 45226
5001 East Philadelphia Street
Ontario, CA 91761
Independent Textile Testing Service, Inc.
P.O. Box 1948
1503 Murray Avenue
Dalton, GA 30722
Intertek Testing Services NA Inc.4
165 Main Street
Cortland, NY 13045
Cortland location (ETL)
3933 US Route 11
Cortland, NY 13045
Madison location (Warnock-Hersey)
8431 Murphy Drive
Middleton, WI 53562
Montreal location
1829 32nd Avenue
Lachine, Quebec, Canada H8T 3J1
Toronto location
3210 American Drive
Mississauga, Ontario, Canada L4V 1B3
Vancouver location
1500 Brigantine Drive
Coquitlam, B.C., Canada V3K 7C1
Lee Testing & Engineering, Inc.
3530 Parkway Lane
P.O. Box 627
Hilliard, OH 43026
Mannik & Smith Group, Inc.
2365 Haggerty Road South
Canton, MI 48188
MET Laboratories, Inc.6
914 West Patapsco Avenue
Baltimore, MD 21230
NAHB Research Center
400 Prince Georges Boulevard
Upper Marlboro, MD 20774
NTH Consultants, Ltd.
38955 Hills Tech Drive
Farmington Hills, MI 48333
NSF International3
789 Dixboro Road
Ann Arbor, MI 48105
NTA, Inc.3
257 East Randolph Street
Nappanee, IN 46550
Omega Point Laboratories, Inc.
16015 Shady Falls Road
Elmendorf, TX 78112
OMNI-Test Laboratories, Inc.3
5465 SW Western Avenue, Suite G
P.O. Box 743
Beaverton, OR 97075
Patriot Engineering and Environmental, Inc.
2568 Kohnle Drive
Miamisburg, OH 45342
PFS Corporation
2402 Daniels Street
Madison, WI 53718
Prime Engineering & Architecture, Inc.
3201 East Royalton Road
Broadview Heights, OH 44147
Professional Service Industries, Inc.
5555 Canal Road
Cleveland, OH 44125
Professional Testing Laboratory, Inc.
714 Glenwood Place
Dalton, GA 30721
Progressive Engineering, Inc.
58640 State Road 15
Goshen, IN 46528
QPS Evaluation Services, Inc.
81 Kelfield Street, Unit 8
Toronto, ON, Canada M9W 5A3
3220 East 59th Street
Long Beach, CA 90805
Resource International, Inc.
281 Enterprise Drive
Westerville, OH 43081
SGS U.S. Testing Laboratories, Inc.
5555 Telegraph Road
Los Angeles, CA 90040
New Jersey location
291 Fairfield Avenue
Fairfield, NJ 07004
Oklahoma location
1341 North 108th East Avenue
Tulsa, OK 74116
Soil Testing & Engineering, Ltd.
6375 Shier Rings Rd., Suite F
Dublin, OH, 43016
Solar Testing Laboratories, Inc.
5399 Lancaster Drive
Brooklyn Heights, OH 44131
Southwest Research Institute
Department of Fire Technology
6220 Culebra Road
P.O. Drawer 28510
San Antonio, TX 78228
TesTech, Inc.
1700 Lyons Road
Dayton, OH 45458
Testing Services, Inc.
817 Showalter Avenue
P.O. Box 2041
Dalton, GA 30721
Thelen Associates, Inc.
Ohio location
2140 Waycross Road
Cincinnati, OH 45240
Kentucky location
1398 Cox Avenue
Erlanger, KY 41018
Timberco, Inc. (TECO)
86305 College View Road
Eugene, OR 97405
TTL Associates, Inc.
1810 North 12th Street
Toledo, OH 43624
TUV Rheinland of North America
12 Commerce Road
Newton, CT 06470
TÜV SÜD America, Inc.8
10 Centennial Drive
Peabody, MA 01960
Minnesota location
1775 Old Highway 8 NW, Suite 104
New Brighton, MN 55112-1891
California location
10040 Mesa Rim Road
San Diego, CA 92121
Underwriters Laboratories, Inc.
333 Pfingsten Road
Northbrook, IL 60062
Underwriters Laboratories of Canada
7 Crouse Road
Scarborough, Ontario M1R 3A9
Western Fire Center, Inc.
2204 Parrott Way
Kelso, WA 98626
Wyle Laboratories, Inc.
7800 Highway 20 West
Huntsville, AL 35806

  1. Approved as an inspection agency
  2. Approved as an inspection and grade marking agency
  3. Approved as a testing laboratory and an inspection agency
  4. ETL and Warnock-Hersey are now part of Intertek Testing Services.
  5. AGA is now a part of the Canadian Standards Association.
  6. Approved as a field-labeling agency.
  7. The Engineering Experiment Station at the Ohio State University discontinued performing tests in 1985. It is still listed because some of the tests performed before 1985 may still be valid.
  8. Approved as a Certification Body Testing Laboratory.
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