903. UNLAWFUL SALES.

It shall be unlawful for any distributor to sell, and for any other person to sell, offer to sale, display for sale or possess with intent to sell, any cigarette within the Reservation unless the tax imposed thereon by this Chapter has been paid and such cigarette or the package containing such cigarette has been stamped to evidence such payment pursuant to regulation issued by the Tax Commission or as otherwise provided in this Chapter. So long as the agreement referred to in Section 917 remains in effect, stamps of the State evidencing payment of the tax imposed by Section 902 shall constitute the stamps required by this section. Any person who shall violate the provisions of this Section shall be subject to a civil penalty of not more than $100 for the first offense and for each subsequent offense shall be subject to a civil penalty of not less than $50 or more than $500.