(i) when such private home is not required to be licensed or registered for such services by the office of children and family services, rooms in such home are excluded from the prohibition of this paragraph during periods when children receiving such services are not present; and

(ii) when such private home is required to be licensed or registered for such services by the office of children and family services, rooms in such home are included within the prohibition of this paragraph, regardless of whether or not children receiving such services are present. i. child day care centers as defined in section three hundred ninety of the social services law and child day care centers licensed by the city of New York; j. group homes for children as defined in section three hundred seventy-one of the social services law; k. public institutions for children as defined in section three hundred seventy-one of the social services law; l. residential treatment facilities for children and youth as defined in section 1.03 of the mental hygiene law; m. all public and private colleges, universities and other educational and vocational institutions, including dormitories, residence halls, and other group residential facilities that are owned or operated by such colleges, universities and other educational and vocational institutions, except that these restrictions shall not apply in any off-campus residential unit occupied by a person who is not enrolled as an undergraduate student in such college, university or other educational or vocational institution; n. general hospitals and residential health care facilities as defined in article twenty-eight of this chapter, and other health care facilities licensed by the state in which persons reside; provided, however, that the provisions of this subdivision shall not prohibit smoking and vaping by patients in separate enclosed rooms of residential health care facilities, adult care facilities established or certified under title two of article seven of the social services law, community mental health residences established under section 41.44 of the mental hygiene law, or facilities where day treatment programs are provided, which are designated as smoking and vaping rooms for patients of such facilities or programs; o. commercial establishments used for the purpose of carrying on or exercising any trade, profession, vocation or charitable activity; p. indoor arenas; q. zoos; and r. bingo facilities. 2. Smoking and vaping shall not be permitted and no person shall smoke or vape in the following outdoor areas: a. ticketing, boarding or platform areas of railroad stations operated by the metropolitan transportation authority or its subsidiaries. b. on the grounds of general hospitals and residential health care facilities as defined in article twenty-eight of this chapter, within fifteen feet of a building entrance or exit or within fifteen feet of the entrance to or exit from the grounds of any such general hospital or residential health care facility. This subdivision shall not prohibit smoking and vaping by a patient or a visitor or guest of a patient of a residential health care facility in a separate area on the grounds designated as a smoking and vaping area by the residential health care facility, provided such designated smoking and vaping area is not within thirty feet of any building structure (other than a non-residential structure wholly contained within the designated smoking and vaping area), including any overhang, canopy, awning, entrance, exit, window, intake or exhaust. 3. Smoking and vaping shall not be permitted and no person shall smoke or vape within one hundred feet of the entrances, exits or outdoor areas of any public or private elementary or secondary schools; provided, however, that the provisions of this subdivision shall not apply to smoking or vaping in a residence, or within the real property boundary lines of such residential real property. The provisions of section thirteen hundred ninety-nine-p of this article shall not apply to this subdivision. 4. Smoking and vaping shall not be permitted and no person shall smoke or vape within one hundred feet of the entrances, exits or outdoor areas of any after-school program licensed or registered pursuant to section three hundred ninety of the social services law; provided, however, that the provisions of this subdivision shall only apply on those days and during those hours in which such after-school programs are operational; and provided, further, that the provisions of this subdivision shall not apply to smoking or vaping in a residence, or within the real property boundary lines of such residential real property. 5. a. Use of an electronic cigarette or e-cigarette shall not be permitted on school grounds, as defined in subdivision six of section thirteen hundred ninety-nine-n of this article. b. "Electronic cigarette" or "e-cigarette" shall have the same meaning as in subdivision thirteen of section thirteen hundred ninety-nine-aa of this chapter. 6. Smoking shall not be permitted and no person shall smoke within one hundred feet of the entrances, exits or outdoor areas of any public or association library as defined in subdivision two of section two hundred fifty-three of the education law; provided, however, that the provisions of this subdivision shall not apply to smoking in a residence, or within the real property boundary lines of such residential real property.