Wash. Admin. Code Northwest Clean Air Agency, 500, 580.7 - Cutback Asphalt Paving
580.71 After June
1, 1990, it shall be unlawful for any person to cause or allow the use of
cutback asphalt in paving during the months of June, July, August and
September, except as provided for in 580.72 of this section.
580.72 The following paving uses and
applications of cutback asphalts are permitted during all months of the year;
580.721 As a penetrating prime coat on
aggregate bases prior to paving.
580.722 The manufacture of patching mixes
used exclusively for pavement maintenance and needed to be stockpiled for times
longer than one month.
580.723 All
paving uses when the temperature during application is below 10 °C (50
°F).
Notes
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