N.Y. Comp. Codes R. & Regs. tit. 9, § 1803.4
(a) State assistance under loan and subsidy contracts may not exceed one-half of the local grants-in-aid for a program, as recognized by the federal government, under any of the following:
(b) State assistance under a capital grant contract may not exceed one-half of the net cost of the program to the municipality or Municipal Urban Renewal Agency, exclusive of any federal aid or assistance, under any of the following:
(2) The three-fourths—one-fourth formula for the sharing of costs between the federal government and the municipality or Municipal Urban Renewal Agency.
Regardless of population the State capital grant under paragraph (2) of this subdivision (b) will be made on the same basis as in paragraph (1). In such case municipalities, under the three-fourths—one-fourth formula, that do not qualify as a municipality having a population of 50,000 or less, or is located in a labor market area designated as a redevelopment area, may have expenditures recognized by the State for the purpose of determining the net cost of the program to the municipality even though such expenditures are excluded from net project cost for the purpose of computing the federal capital grant.
(d) State assistance under a non-federally assisted capital grant contract may not exceed the lowest of the following amounts:
(3) $500,000;
exclusive of any other State aid or assistance provided under any other program which shall be deducted in computing the amount of the State capital grant therefor. Eligibility of costs for a non-federally assisted project are the same as for a project federally financially assisted. Costs may include but are not limited to: