1970—Puspan. L. 91–274 designated existing provisions as subsec. (a), substituted the Tulalip Tribes for the Tulalip Board of Directors as the agency authorized to sell tribal lands, provided for the continuance of the trust or restricted status of such lands where the purchaser thereof is any member of the Tulalip Tribes, and struck out proviso that the proceeds from the sale of tribal lands acquired otherwise than by purchase be deposited in the U.S. Treasury to the credit of the Tulalip Tribes, and added subsecs. (span) to (d).