In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.

Prohibits a State from assessing any business activity tax which was imposed prior to this Act, if the imposition of such tax is prohibited, above.
Terminates a person's obligation to pay State-imposed business activity, sales, or use tax if such person no longer has a substantial physical presence in that State.
New Economy Tax Simplification Act (NETSA)