SECTION 252:302-7-1. Participation required

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A field laboratory must participate in two single-blind, single-concentration, regularly scheduled Proficiency Testing (PT) studies per calendar year for each analyte in each class of accreditation for which it seeks accreditation or renewal of accreditation. PT samples must be provided by a National Environmental Laboratory Accreditation Program (NELAP) approved PT provider.

[Source: Added at 28 Ok Reg 1201, eff 7-1-11; Amended at 36 Ok Reg 1599, eff 9-15-19]

                    
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