Paragraph 11
Plans submitted along with an application to which these regulations relate shall–
in every case have a unique reference number inserted thereon by the applicant or his duly authorised agent;
in every case be drawn or reproduced in a clear and intelligible manner and in or capable of being reproduced in a permanent form and have indicated thereon the scale (if any) to which it is drawn; and
in relation to plans being submitted by means other than electronic communication–
in the case of the principal and copies be on such material as may be acceptable to the verifier; and
clearly indicate the proposed work and include a specification or other written or figured statement signed by the applicant or a duly authorised agent as relative to the plan.