|Any proposed revision to approved plans and profiles shall be submitted to and approved by the Director of Public Works & Transportation. The following procedures shall be required for the submission and approval of a revision:
• A letter of transmittal shall accompany each revision submitted for review and approval, describing the revision in detail and its general location; and
• The submitting engineer shall seal and date certify all revisions to ensure that no other changes have been made on the plan or profile except those previously approved; and
• All revisions shall be clearly shown and circled in red; and
• A revision block shall be incorporated as part of the title block for a plan or profile sheet. Revisions shall be indicated by a numbered “delta” in the vicinity of the change on the plan and described in the revision block beside the corresponding number.