N.Y. Comp. Codes R. & Regs. tit. 6, § 613-5.1
(3) The following are tier 1 conditions:
(ii) A UST system covered under sections 613-2.1(a), 613-3.1(a)(2), or (4) of this Part does not have one or more of the following:
(d) leak detection equipment required under sections 613-2.3(a) and (b), or 613-3.3(a) and (b) of this Part.
(b) Tier 2 conditions.
(4) The following are tier 2 conditions:
(ii) With respect to the operation of a UST system covered under section 613-2.1(a), 613-3.1(a)(2), or (4) of this Part, the facility has not demonstrated within 30 days following receipt of the department’s statement issued pursuant to paragraph (2) of this subdivision compliance with the following standards:
(iii) With respect to the operation of a UST system covered under section 613-3.1(a)(1) or (3) of this Part, one or more of the following is missing and the facility has not documented to the department that the missing component has been put in place within 30 days after receipt of the department’s statement issued pursuant to paragraph (2) of this subdivision:
(iv) With respect to the operation of an AST system covered under section 613-4.1(a) of this Part, one or more of the following is missing and the facility has not documented to the department that the missing component has been put in place within 30 days after receipt of the department’s statement issued pursuant to paragraph (2) of this subdivision:
(c) The department may issue the written finding, consistent with paragraph (a)(2) or (b)(3) of this section, that a tier 1 or tier 2 condition exists, but withhold the imposition of the delivery prohibition for a period that may not exceed 180 days, where:
(a) Tier 1 conditions.