In order to become an Accredited Testing Laboratory, you must attend a Lab Training in addition to filling out the necessary forms below. Lab training is usually held once a year.

If you are a laboratory that is interested in becoming accredited with the CRRC so that you can perform radiative property tests (and you have no significant commercial ties to any company that manufactures or sells), please read the following Accredited Independent Testing Laboratory information below. If you are affiliated with a manufacturer, please read the Accredited Manufacturer Testing Laboratory information below.

All Accredited Laboratories participate in the CRRC biennial Interlaboratory Comparison Study (ILC). During the ILC, the same set of test specimens is circulated to all participants. The purpose of the ILC is to verify that test equipment is calibrated properly and operated in compliance with the relevant ASTM standards and CRRC requirements.

Accredited Independent Testing Laboratory Information

An Accredited Independent Test Laboratory (AITL) is approved to submit test results to the CRRC for products seeking a CRRC product rating. An AITL is completely independent from any manufacturing company, seller or distributor. AITLs participate in the biennial ILC to ensure continued compliance with CRRC policies and procedures.

Laboratories interesting in becoming AITLs must adhere to the following requirements:

  • Submit a CRRC Accredited Laboratory Participation Application Form (CRRC F-5);

  • Submit a Accredited Independent Testing Laboratory Agreement (CRRC A-3);

  • Pay the Accredited Laboratory Annual fee (see CRRC Fees & Dues Structure);

  • Send at least one representative from your laboratory who will be responsible for supervising or performing tests at the laboratory to a CRRC Lab Training;

  • Submit a Statement of Independence that shows no significant ownership of commercial interest in a supplier or roof or wall product company and is not owned by such a company;

  • Demonstrate accreditation to International Standard ISO/IEC 17025. Evidence of accreditation to ISO/IEC 17025 may be a copy of the current ISO/IEC 17025 Scope of Accreditation certificate issued by the accrediting body and a listing of test methods that the accrediting body has found the AITL capable of performing; and

  • Notify the CRRC within 10 business days of any change in the Responsible Person(s) for CRRC testing. To maintain approval as an AITL, the laboratory must retain at least one Responsible Person to supervise or perform the testing and certify test results.

For more information on AITL requirements, please refer to the CRRC-1 Product Rating Program Manual, Chapter 2 (Roof Program) and CRRC-2 Wall Product Rating Program Manual, Chapter 2 (Wall Program).

Accredited Manufacturer Testing Laboratory Information

Roof Program

Becoming an Accredited Manufacturer Testing Laboratory (AMTL) in the CRRC Roof Product Rating Program can aid in demonstrating ISO 17025 compliance through participation in the biennial Interlaboratory Comparison Study.

Manufacturer laboratories that are interested in becoming AMTLs must adhere to the following requirements:

For more information on AMTL requirements, please refer to the CRRC-1 Product Rating Program Manual, Chapter 2.

Please email [email protected] or call Audrey McGarrell at (503) 606-8448 x506 for information about becoming a Roof AMTL.

Wall Program

CRRC Wall Licensees with their own testing facilities have the opportunity to become a CRRC Wall Rating Program Accredited Manufacturing Testing Laboratory (Wall AMTL). Wall AMTLs are able to submit radiative property data for Color Family Additional Element Applications in the Wall Color Family Program. Becoming an AMTL can also aid in demonstrating ISO 17025 compliance through participation in the biennial ILC. The requirements for Wall AMTLs and the Wall Color Family Program can be found in the CRRC-2 Wall Product Rating Program Manual.

To apply as a CRRC Wall AMTL, please download and complete the following documents:

For more information on AMTL requirements, please refer to the CRRC-2 Wall Product Rating Program Manual, Chapter 2.

Please email [email protected] or call Audrey McGarrell at (503) 606-8448 x506 for information about becoming a Wall AMTL.



Rapid Ratings Laboratory Information (Roof Program Only)

A CRRC Rapid Ratings Laboratory is an AITL or Test Farm (AMTLs are not eligible) that is approved by the CRRC to conduct the Practice for Laboratory Aging of Roofing Materials in order to develop simulated aged radiative property values for CRRC product ratings. Only roofing products are eligible for Rapid Ratings at this time.

Laboratories and Test Farms interesting in becoming a Rapid Ratings Laboratory must adhere to the following requirements:

  • Submit a CRRC Accredited Laboratory Participation Application Form (CRRC F-5);

  • Submit a copy of ISO/IEC 17025 Scope of Accreditation that includes ASTM D7897 (or a statement to include ASTM D7897 upon ISO/IEC 17025 accreditation renewal);

  • Send at least one representative from your laboratory who will be responsible for supervising or performing the lab aging simulation to a CRRC Lab Training; and

  • Notify the CRRC within 10 business days of any change in the Responsible Person(s) for CRRC Rapid Ratings. To maintain approval for CRRC Rapid Ratings testing, a laboratory must retain at least one Responsible Person to supervise or perform the practice and certify test results.

For more information on Rapid Ratings Laboratory requirements, please refer to the CRRC-1 Product Rating Program Manual, Chapter 2.

Laboratory Annual Renewal Requirements

All AITLs and Rapid Ratings Laboratories shall provide a copy of their ISO/IEC 17025 Scope of Accreditation certificate, along with payment of the renewal fee, to the CRRC by the stated deadline. Failure to do so will result in loss of CRRC accreditation and removal from the CRRC list of approved laboratories.

All AMTLs are required to pay the annual renewal fee by the stated deadline.

Notification of the renewal process will occur in January.

For more information on laboratory renewal requirements, please refer to the CRRC-1 Product Rating Program Manual, Chapter 2 (Roof Program) or CRRC-2 Wall Product Rating Program Manual, Chapter 2 (Wall Program).


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