; (2) requiring any person to qualify to transact intrastate business; (3) subjecting any person to State or local taxes not related to the sale of products or services; or (4) exercising authority over matters of interstate commerce. (e) No new taxes Nothing in this Act shall be construed as encouraging a State to impose sales and use taxes on any products or services not subject to taxation prior to the date of the enactment of this Act. (f) No effect on intrastate sales The provisions of this Act shall apply only to remote sales and shall not apply to intrastate sales or intrastate sourcing rules. States granted authority under section 2(a) shall comply with all intrastate provisions of the Streamlined Sales and Use Tax Agreement. (g) No effect on Mobile Telecommunications Sourcing Act Nothing in this Act shall be construed as altering in any manner or preempting the Mobile Telecommunications Sourcing Act ( 4 U.S.C. 116–126 ). (h) Limitation on initial collection of sales and use taxes from remote sales A State may not begin to exercise the authority under this Act— (1) before the date that is 1 year after the date of the enactment of this Act; and (2) during the period beginning October 1 and ending on December 31 of the first calendar year beginning after the date of the enactment of this Act. 4. Definitions and special rules In this Act: (1) Certified software provider The term certified software provider means a person that— (A) provides software to remote sellers to facilitate State and local sales and use tax compliance pursuant to section 2(b)(2)(D)(ii); and (B) is certified by a State to so provide such software. (2) Locality; local The terms locality and local refer to any political subdivision of a State. (3) Member State The term Member State — (A) means a Member State as that term is used under the Streamlined Sales and Use Tax Agreement as in effect on the date of the enactment of this Act