The Board shall act in strict accordance with the procedures specified by the Pennsylvania Municipalities Planning Code, as amended, and by this Part
1. All appeals and applications made to the Board shall be in writing, on forms prescribed by the Board. Every appeal or application shall refer to the specific provision of this Part
1 involved and shall exactly set forth the interpretation that is claimed, the grounds for any challenges to the validity of this Part
1, the use for which a special exception is sought, or the details of the variance that is applied for and the grounds on which it is claimed that the variance should be granted, as the case may be.