B.3 For the purposes of Class B—
“appropriate details" means the nature of the development, the exact location of the mineral-working deposit from which the material would be removed, the proposed means of vehicular access to the site at which the development is to be carried out, and the earliest date at which any mineral presently contained in the deposit was deposited on the land; and
“relevant period" means the period elapsing—
where a direction is not issued under article 7, 28 days after the notification referred to in paragraph B.1(a) or, if earlier, on the date on which the mineral planning authority notify the developer in writing that they will not issue such a direction; or
where a direction is issued under article 7, 28 days from the date on which notice of that direction is sent to the Secretary of State, or, if earlier, the date on which the mineral planning authority notify the developer that the Secretary of State has disallowed the direction.