a. For the purposes of this section, a shelter for adults that operates with a permitted census in excess of two hundred persons pursuant to subdivision b of section 21-312 of this code shall be termed "a grandfathered shelter." In the event that any grandfathered shelter is closed, it may be replaced pursuant to the following provisions:
1. The Kingsboro Shelter Building 6 operating with a census of two hundred twenty-one persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with a shelter with a maximum census of two hundred twenty-one persons.
2. The Brooklyn Women's Shelter operating with a census of two hundred twenty-nine persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with a shelter with a maximum census of two hundred twenty-nine persons.
3. The Atlantic Shelter operating with a census of three hundred fifty persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with a shelter with a maximum census of three hundred fifty persons.
4. The Borden Shelter operating with a census of four hundred ten persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with a shelter with a maximum census of three hundred fifty persons.
5. The Bellevue Shelter operating with a census of eight hundred fifty persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with two shelters each with a maximum census of four hundred persons.
6. The Camp LaGuardia Shelter operating with a census of one thousand seventeen persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with two shelters each with a maximum census of four hundred persons.
7. The Charles H. Gay Shelter operating with a census of one thousand thirty-seven persons permitted pursuant to subdivision b of section 21-312 of this code may be replaced with two shelters each with a maximum census of four hundred persons.
b. Each new shelter which replaces a shelter listed in subdivision a of this section shall comply with applicable statutes, laws, rules and regulations, including, but not limited to, section 197-c of the New York city charter.