Section 580.7 - Cutback Asphalt Paving580.71 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). Wash. Admin. Code Northwest Clean Air Agency, 500, 580.7
PASSED: December 13, 1989 AMENDED: April 14, 1993