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Test Labs

ICC-SRCC™'s certification program operating guidelines, test methods and minimum standards, and rating methodologies require the performance of nationally accepted equipment tests on solar equipment by independent labs which are approved by ICC-SRCC™. Testing laboratories operating ICC-SRCC™ Approved Testing Programs provide testing services for manufacturers seeking certification of solar thermal collectors under the SRCC OG-100 program and system components (as applicable) under the OG-300 program. ICC-SRCC™ does not provide product or laboratory testing services. Manufacturers seeking testing services to support ICC-SRCC™ certifications independently select from among the ICC-SRCC™ Approved Testing Programs and contract directly with the testing laboratory to conduct the required testing.

Test results provide by ICC-SRCC™ Approved Testing Programs, are evaluated by ICC-SRCC™ as part of OG-100 application packages to determine solar thermal collectors' compliance with the minimum standards for certification and to calculate the performance ratings. Test results for specific components in a solar thermal system seeking ICC-SRCC™ OG-300 Certification may also be required from a ICC-SRCC™ Approved Testing Program in accordance with the ICC-SRCC™ TM-1 Document PDF Icon. The component test data is then used to develop model of the system for the purposes of calculating ratings under the ICC-SRCC™ OG-300 Program. Such components include solar tanks, circulator pumps and heat exchangers. Note, however, that testing of individual components is not required in all cases for OG-300 certification, depending on the type of system and the options selected by the applicant. OG-300 applicants work with ICC-SRCC™ staff to determine if any component testing will be required for a given system.

Testing laboratories participating in the ICC-SRCC™ Approved Testing Program are inspected to ensure they have the testing equipment, qualityTest Labs 2 controls, staff expertise necessary to provide data to support certifications under ICC-SRCC™'s programs. ICC-SRCC™ certifications are designed to provide performance ratings that can be compared, and consistent test methods are essential. Labs are also instructed on the proper format of test reports submitted to ICC-SRCC™ to ensure that all certifications are processed in the same way and in a timely fashion. ICC-SRCC™ also provides updates to participating labs on the latest developments in the program and revisions to testing and certification procedures. Labs, in turn, provide important feedback on testing processes, to allow for continuous improvements.

To learn more or apply to participate in the program, click on any of the links below, or contact us at

ICC-SRCC™ Testing Laboratory Program Policy PDF Icon

ICC-SRCC™ Application for Approval of Test Labs PDF Icon

Directory of ICC-SRCC™ Approved Labs


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