(1)

Every plan or section prepared or submitted in accordance with the provisions of these rules shall-

(a) show the name of the mine and of the holder of the mining lease and the purpose for which the plan or section is prepared;

(b) show the true north or the magnetic meridian and the date of the letter;

(c) show a scale of the plan at least twenty-five centimeters long and suitably sub-divided;

(d) unless otherwise provided, be on a scale having a representative factor of -

(e) be digitally prepared in the format as may be specified by the Indian Bureau of Mines.

(2)

The conventions provided under the Metalliferous Mines Regulations, 1961, shall be used in preparing all plans and sections required under these rules.

(3)

The plans and sections shall be accurate within such limits of error as the Controller General may specify by a general or special order.

(4)

The plans and sections required under these rules shall be maintained up to date within three months in case of category 'A' mines as referred to in clause (a) of sub-rule (2) of rule 55, and within twelve months in the case of any other mine.