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Canadian Association for Laboratory Accreditation Inc.

Building Laboratory Excellence

Environmental Testing

CALA’s legacy program is the environmental laboratory accreditation program, which was initiated in 1993.  Accreditation under this program provides assurance that laboratories are competent to carry out environmental testing that is performed to support environmental monitoring programs and regulations. 

For an environmental laboratory to attain accreditation, it must meet both the management and technical requirements of ISO/IEC 17025.  Specific application of requirements in ISO/IEC 17025 as they relate to the area of environmental testing is detailed in P07 – CALA Application of Requirements in ISO/IEC 17025:2005.

Ontario MOE/CALA Accreditation Agreement 

The Ontario Safe Drinking Water Act (OSDWA), 2002, and related regulations provide requirements for drinking water testing in the Province of Ontario.  One of the requirements under the Act is that laboratories testing Ontario drinking water samples must be licensed, and one of the conditions of licensing is accreditation.  Section 66(1) of the Act allows the Minister to enter into an accreditation agreement for this purpose.  To this end, the Agreement for the Accreditation of Drinking-Water Testing Laboratories between the Ontario Ministry of the Environment and CALA came into effect on August 01, 2008.  Those pursuing a license may apply for accreditation by CALA using one of the applicable “P04 – CALA Application Form” Series documents found in the Accreditation Program Requirements in the CALA Library.

For more information on the Ontario Safe Drinking Water Act (OSDWA), please go to: