Per Curiam.
Twenty days after this Court granted a writ of certiorari, 409 U. S. 841, Congress amended the relevant statutory provisions, § 202 (d)(8) of the Social Security Act, 42 U. S. C. §402 (d)(8). See § 111 (a), Social Security Amendments of 1972 (Oct. 30, 1972), Pub. L. 92-603, 86 Stat. 1329. The writ of certiorari heretofore granted is dismissed as improvidently granted.