TAX LIMITATION--INITIATIVE CONSTITUTIONAL AMENDMENT. Limits ad valorem taxes on real property to 1% of value except to pay indebtedness previously approved by voters. Establishes 1975-76 assessed valuation base for property tax purposes. Limits annual increases in value. Provides for reassessment after sale, transfer, or construction. Requires 2/3 vote of Legislature to enact any change in state taxes designed to increase revenues. Prohibits imposition by state of new ad valorem, sales, or transaction taxes on real property. Authorizes imposition of special taxes by local government (except on real property) by 2/3 vote of qualified electors. Financial impact: Commencing with fiscal year beginning July 1, 1978, would result in annual losses...