§ 91. Effect of invalidity in part. If any clause, sentence,
paragraph, subsection, section or other part of this title or the
application thereof to any person or circumstances, shall be held to be
invalid, such holding shall not affect, impair or invalidate the
remainder of this title or the application of such part held invalid, to
any other person or circumstances, but shall be confined in its
operation to the clause, sentence, paragraph, subsection, section or
other part thereof directly involved in such holding, or to the person
and circumstances therein involved.

§ 2. Notwithstanding any provision of law to the contrary, any city
having a population of one million or more, acting through its local
legislative body, is hereby authorized and empowered to adopt and amend
local laws imposing for any such city a tax on unincorporated
businesses. The terms of such local law shall be, substantially, as
follows except that any such local law may be amended for the purpose of
conforming it with similar provisions of article twenty-three of the tax
law as presently in effect or as it may be amended and except that the
appendix in any such local law may be amended for the purpose of
conforming it with the United States internal revenue code or other
federal laws relating to taxation as presently in effect or as they may
be amended;