25 Pa. Code § 77.225
A permittee for surface mining activities may post a combination of surety and collateral bonds for a permit or designated phase of a permit.
The provisions of this § 77.225 adopted March 16, 1990, effective March 17, 1990, 20 Pa.B. 1643.
This section cited in 25 Pa. Code § 77.221 (relating to scope).