16 Certificate of payment
1 An employer may request a certificate from the Board as evidence that the employer has paid all sums due under—
(a) an assessment notice; or
(b) an amended assessment notice.
2 The Board must issue a certificate to an employer when—
(a) the Board has received a request for a certificate from an employer; and
(b) all sums due under the relevant notice have been paid by that employer.
3 The certificate must state—
(a) the total amount of levy paid by the employer; and
(b) that no further sums are due from the employer in respect of the relevant notice.