No certificate of need shall be required for any buildings, real property and equipment owned, leased or being operated, or under contract for construction, purchase, or lease and for all services being rendered by licensed or approved providers on April 1, 1980. Nor shall a certificate of need be required for any new institutional health services for which an approval has been granted under section 1122 of the Social Security Act or for which an application is found pursuant to such section to be in conformity with the standards, criteria or plans to which such section refers, or as to which the Federal Secretary of Health and Human Services makes a finding that reimbursement shall be granted: Provided, however, That such approval is in force on August 1, 1980 or such application shall have been filed prior to August 1, 1980 or the acceptance of applications for reviews under this act, whichever shall last occur.
35 P.S.§ 448.901