for visits occurring on and after January 1, 2009, by hospital outpatient clinics and diagnostic and treatment centers otherwise subject to this Subpart, which are scheduled and occur on evenings, weekends and holidays as defined by the department, a supplemental APG payment amount, as determined in accordance with section 86-8.7 of this Subpart, shall be added on to the otherwise applicable payment amount for each such visit.
N.Y. Comp. Codes R. & Regs. Tit. 10 §§ 86-8.12