When an applicant wishes to pipe a drain, a Notice for consent is required from the Board. To process this consent the applicant needs to apply in writing giving details of location, and length, whereupon the Board will issue an A9,specification for pipe dimension, type, and regularity conditions regarding manhole access etc. This document also includes details of commuted sums required from the applicant. The commuted sum is in respect of a once only payment for the responsibility of future maintenance for the pipe in question to be taken over by the Board.