Section 903.816 - Performance standards-Surface mining activities(a) Part 816 of this chapter, Permanent Program Performance Standards-Surface Mining Activities, applies to any person who conducts surface mining activities, except § 816.116(a)(1) of this chapter regarding revegetation success standards, for which paragraph (b) of this section substitutes.(b) Standards for success shall be those identified at § 816.116(a)(2) and (b) of this chapter. Statistically valid sampling techniques for measuring success shall be included in the mining and reclamation plan and approved by the regulatory authority.