N.Y. Comp. Codes R. & Regs. tit. 14, § 690.1
(d) For meeting the needs of persons (see glossary) with developmental disabilities, day treatment is intended to be a planned combination of diagnostic, treatment and habilitative services provided to persons with developmental disabilities in need of a broad range of clinically supported and structured habilitation services.
(e) Sections 690.3, 690.4, 690.5 and 690.6 of this Part are organized in a format consisting of principles of compliance and standards of certification. In reviewing the continued eligibility of a day treatment facility for an operating certificate, OPWDD shall survey for compliance with all "standards of certification," herein and any other applicable requirements. OPWDD may evaluate non-compliance with the applicable "principles of compliance." The detailed premises for the principles of compliance and standards of certification format may be found in Part 633.2 of this Title.