N.Y.C. Admin. Code § 5-380: § 5-380 Maps; filing of.

The corporation counsel shall cause one of the maps described in section 5-379 of this subchapter, or a certified copy thereof, to be filed in the office of the clerk of each county in which any real estate laid out on such map shall be located except that in any county in which there is a register's office, such map shall be filed therein instead of in the office of the county clerk. The other maps described in section 5-379 of this subchapter shall be disposed of in the manner indicated in succeeding sections of this subchapter.