Section 1166. Transitional provisions

With respect to the tax imposed under
  section  eleven  hundred  sixty  of  this  article effective June first,
  nineteen hundred ninety, the provisions of subdivision  (a)  of  section
  eleven  hundred  six  of  this  chapter shall apply, except that for the
  purposes of this section, all references in said subdivision (a) of such
  section eleven hundred six to August first, nineteen hundred sixty-five,
  shall be read as referring to the effective date of such section  eleven
  hundred  sixty,  and  all  references  in  said  subdivision (a) of such
  section eleven hundred six to April first, nineteen  hundred  sixty-five
  shall  be  read  as  referring  to  the  date  four  months prior to the
  effective date of such section  eleven  hundred  sixty.  Nothing  herein
  contained  shall  be  deemed to change the taxable status of any sale or
  use which occurred prior to such effective date,  and  provided  further
  that the reference in subdivision one of section eleven hundred eighteen
  of  this  chapter to August first, nineteen hundred sixty-five, shall be
  read as referring to the effective date of section eleven hundred  sixty
  of this article.