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Rule 4.09.1(15) Excess spoil or underground development waste may be <br />returned to underground mine workings, but only with a disposal <br />• program approved by the Division and in compliance with the applicable <br />requirements of MSHA upon the basis of a plan submitted under 2.05.3 <br />(8) (3) . <br />COMN,ENT: This technical revision does not pertain to return of <br />development waste back to the underground mine; therefore, this section <br />is not applicable. <br />Rules 4.09.2 - 4.09.4 Valley Fill, Head of Hollow Fill, and Durable <br />Rock Fills <br />COP4fENT: These rules do not apply to this technical revision request. <br />U <br /> <br />-10- <br />