Authorizing the Mayor and City Council of Baltimore City or the governing body of a county or municipality to designate, by law, an area within that political subdivision as a tourism zone under certain circumstances; providing that the designation of an area as a tourism zone may not preclude the area from being designated as an arts and entertainment district; authorizing a county or municipality to exempt from the admissions and amusement tax gross receipts from certain admissions or amusement charges levied in a tourism zone; etc.