OSHPD Preapproved Agency (OPAA)*
Approved Agencies for Structural Tests and Special Inspections

OSHPD Preapproved Agency (OPAA)Number Approved Agency Name City County State
(Use Country Name for non-US Labs)
ZIP Code Services Provided Approval Expiration Date Comments
  Testing Speical Inspections  
OPAA-0001-16 Southwest Research Institute San Antonio Bexar Texas 78227 Yes No 03/31/2018 See Attachment
OPAA-0002-16 Ninyo and Moore San Diego San Diego CA 92123 Yes Yes 09/07/2018 See Attachment
OPAA-0003-16 Achievement Engineering San Jose Santa Clara CA 95131 Yes Yes 10/18/2020 See Attachment
OPAA-0004-16 Applied Materials & Engineering Oakland Alameda CA 94608 Yes Yes 03/22/2020 See Attachment
OPAA-0005-16 Twining Ventura Ventura CA 93003 Yes Yes 03/07/2020 See Attachment
OPAA-0006-16 Moore Twining Fresno Fresno CA 93721 Yes Yes 05/29/2020 See Attachment
OPAA-0007-16 IABG Ottobrunn (Munich) Bavaria Germany D-85521 Yes No 12/17/2022 See Attachment
OPAA-0008-16 DCL Sparks Washoe NV 89431 Yes No 01/24/2023 See Attachment
OPAA-0009-16 Group Delta Consultants San Diego San Diego CA 92126 Yes Yes 09/15/2020 See Attachment
OPAA-0010-16 Kleinfelder West Ontario San Bernardino CA 91762 Yes Yes 07/01/2020 See Attachment
OPAA-0011-16 Twining San Bernardino San Bernardino CA 91730 Yes Yes 10/02/2020 See Attachment
OPAA-0012-16 SCST San Diego San Diego CA 92120 Yes Yes 04/25/2021 See Attachment
OPAA-0013-16 Twining Inc. Long Beach Los Angeles CA 90806 Yes Yes 04/25/2021 See Attachment
OPAA-0014-16 CHJ Consultants, A Terracon Company Colton San Bernardino CA 92324 Yes Yes 02/23/2021 See Attachment
OPAA-0015-16 RMA Group Rancho Cordova Sacramento CA 95742 Yes Yes 12/28/2019 See Attachment
OPAA-0016-16 Fenagh Engineering and Testing, LLC. Rancho Cucamonga San Bernardino CA 91730 Yes Yes 09/07/2023 See Attachment
OPAA-0017-16 Twining Irvine Orange CA 92614 Yes Yes 04/15/2019 See Attachment
OPAA-0018-16 JE & B Engineering, Inc. City of Industry Los Angeles CA 91744 Yes Yes 8/30/2021 See Attachment
OPAA-0019-16 BSK Associates Bakersfield Kern CA 93301 Yes Yes 4/25/2021 See Attachment
OPAA-0020-16 Construction Testing Services Pleasanton Alameda County CA 94588 In Review In Review In Review In Review
OPAA-0021-16 Certified Inspection Labs Anaheim Orange CA 92802 Yes Yes 03/12/2024 See Attachment
OPAA-0022-16 Leighton Consulting Inc. San Diego San Diego CA 92123 Yes Yes 05/10/2021 See Attachment
OPAA-0023-16 Smith-Emery Laboratories Los Angeles Los Angeles CA 90021 Yes Yes 01/01/2020 See Attachment
OPAA-0024-16 Progressive Engineering, Inc. Goshen Elkhart IN 46528 Yes No 05/01/2018 See Attachment
OPAA-0025-16 Solis Engineering, Inc. Bakersfield Kern CA 93313 In Review In Review In Review In Review
OPAA-0026-16 GeoSolutions, Inc San Luis Obispo San Luis Obispo CA 93401 Yes Yes 03/02/2024 See Attachment
OPAA-0027-16 RMA Group Rancho Cucamonga San Bernardino CA 91730 In Review In Review In Review In Review

*See Policy Intent Notice 58 (PIN 58).

This page was last updated on Tuesday, March 13, 2018.