10 Pa. Code § 13.21
In the event a borrower is not advised of the monthly rate of charge for a loan under a revolving credit plan by a statement contained in the agreement entered into in connection with the loan, the borrower shall be advised of the monthly rate of charge in a written statement delivered to the borrower within 10 days after the revolving credit plan agreement has been executed.
The provisions of this § 13.21 adopted January 14, 1969.