Section 601 - APPLICATION OF OBJECTIVES601.1 The NWCAA may employ any reasonable method or combination of methods such as area sampling, source sampling, emission evaluation and assessment of source contribution and effect.601.2 Consistent with Section 600.1 of this Regulation, it is the intent of the NWCAA to establish emission standards such that emissions in one area will not contravene the objectives in another area. Wash. Admin. Code Northwest Clean Air Agency, 600, 601