The approval of applications for centers that accept only waste oil and/or surplus paint, submitted pursuant to 310 CMR 30.393(3), shall be deemed granted as a "presumptive approval" unless, within 21 days of the Department's receipt of an application, the Department notifies the applicant of a deficiency or denies the application in writing. If deemed granted, the applicant may act in good faith on this approval even though the applicant does not have a written statement by the Department to that effect. For centers that accept hazardous wastes other than waste oil and surplus paint, the applicant shall apply for and receive written approval from the Department. The sponsor shall sign all applications for the Department's approval to establish or maintain a center in compliance with the requirements of 310 CMR 30.009 and 310 CMR 30.807(1). The Department may give an approval pursuant to 310 CMR 30.393 and allow that approval to remain in effect only to the extent the Department is persuaded that such action would not lead to a significant potential hazard to public health, safety, or welfare, or to the environment, or be in noncompliance with 310 CMR 30.393. In addition to any requirements set forth in 310 CMR 30.393, the Department may impose any other conditions in its approval to ensure that the activity in question does not constitute a significant potential hazard to public health, safety, or welfare or the environment.
310 CMR, § 30.393