(a) Within 12 months of receiving the mineral information described in Section 2761, and also within 12 months of the designation of an area of statewide or regional significance within its jurisdiction, a lead agency shall, in accordance with state policy, establish mineral resource management policies to be incorporated in its general plan that will:

1. (1) Recognize mineral information classified by the State Geologist and transmitted by the board.
2. (2) Assist in the management of land use that affects access to areas of statewide and regional significance.
3. (3) Emphasize the conservation and development of identified mineral deposits.

(d)

1. (1) If an area is classified by the State Geologist as an area described in paragraph (2) of subdivision (b) of Section 2761 and the lead agency either has designated that area in its general plan as having important minerals to be protected pursuant to subdivision (a), or otherwise has not yet acted pursuant to subdivision (a), then prior to permitting a use that would threaten the potential to extract minerals in that area, the lead agency shall prepare, in conjunction with preparing, if required, an environmental document required by Division 13 (commencing with Section 21000), a statement specifying its reasons for permitting the proposed use, and shall forward a copy to the State Geologist and the board for review.

2. (2) If the proposed use is subject to the requirements of Division 13 (commencing with Section 21000), the lead agency shall comply with the public review requirements of that division. Otherwise, the lead agency shall provide public notice of the availability of its statement by all of the following:

   1. (A) Publishing the notice at least one time in a newspaper of general circulation in the area affected by the proposed use.
   2. (B) Directly mailing the notice to owners of property within one-half mile of the parcel or parcels on which the proposed use is located as those owners are shown on the latest equalized assessment roll.
3. (3) The public review period shall not be less than 60 days from the date of the notice and shall include at least one public hearing. The lead agency shall evaluate comments received and shall prepare a written response. The written response shall describe the disposition of the major issues raised. In particular, if the lead agency’s position on the proposed use is at variance with recommendations and objections raised in the comments, the written response shall address in detail why specific comments and suggestions were not accepted.