回复：that's for public building, ok?

根據 THE NYC SMOKER-FREE CITY ACT OF 2002 的規定
您應該可以在自己的房間內"哈草" (台灣軍中對抽煙的暱稱)
但是您的房東有權要求您不准在租屋內吸煙，但是這項要求必須明白定在租約中。(您下一次續約時應該注意看看房東是否增加這項條款)

全文如下

§ 17-505 Areas where smoking is not regulated by this chapter.
The following areas shall not be subject to the smoking restrictions of this chapter; provided however, that nothing in this section shall be construed to permit smoking where smoking is otherwise prohibited or restricted by any other law or rule:
b. Private residences, except any area of a private residence where a child day care center or health care facility is operated (i) during the times of operation or (ii) during the times when employees are working in such child day care center or health care facility areas; provided, however, that a common area of a multiple dwelling containing ten or more dwelling units shall be subject to smoking restrictions.

原使條文的聯接
http://www.nycclash.com/LocalLaw47.html