the contract must include a provision requiring the person to obtain a permit pursuant to NRS 360.5971 or to register pursuant to NRS 360B.200, and to collect and pay the taxes imposed pursuant to this chapter on the sale of tangible personal property in any county in this State. For the purposes of a permit obtained pursuant to NRS 360.5971, the person shall be deemed to have a place of business in each county in this State, but shall pay the fee for a single permit.
NRS 374.128