Applicability and Schedule

(1) Large quantity toxics users and other toxics users may prepare a resource conservation plan in accordance with 310 CMR 50.90 in lieu of a toxics use reduction plan once the toxics user has completed one toxics use reduction plan and two plan updates. (2) By July 1st of the applicable even-numbered calendar year, a toxics user that elects to prepare a resource conservation plan must complete a resource conservation plan and submit a resource conservation plan summary to the Department. (3) Toxics users who choose to prepare a resource conservation plan pursuant to 310 CMR 50.90 shall: st (a) by July 1 of the following even-numbered calendar year, prepare a toxics use reduction plan pursuant to 310 CMR 50.40 and submit a toxics use reduction plan summary to the Department; and (b) Include with the plan summary a progress report on the resource conservation plan on a form prescribed by the Department. (4) After completing a resource conservation plan, toxics users may elect to prepare another resource conservation plan four years later, after meeting the requirements of 310 CMR 50.91(3).