Suitable mulch and other soil stabilizing practices shall be used on all areas that have been regraded and covered by topsoil or topsoil substitutes. The regulatory authority may waive this requirement if seasonal, soil, or slope factors result in a condition where mulch and other soil stabilizing practices are not necessary to control erosion and to promptly establish an effective vegetative cover.
[48 FR 40160, Sept. 2, 1983, as amended at 81 FR 93392, Dec. 20, 2016; 82 FR 54979, Nov. 17, 2017]