9VAC5-190-100. Applicability of future regulation amendments

Subsequent amendments to the SAPCB regulations to which this chapter applies shall not apply to the Stonewall Plant unless and until the board amends this chapter to specifically address the applicability of the regulatory amendments to the facility. In any action to amend this chapter, the board shall, to the maximum extent possible, preserve the operating flexibility and regulatory simplification achieved by the Merck XL project and justified by the superior environmental performance it provides.