The Child Support (Maintenance Calculation Procedure) Regulations 2000

No maintenance calculation in force: more than one application for a maintenance calculation by the same person under section 4 or 6 or under sections 4 and 6 of the Act

1.—(1) Where an effective application is made or treated as made, as the case may be, for a maintenance calculation under section 4 or 6 of the Act and, before that calculation is made, the applicant makes a subsequent effective application under that section with respect to the same non-resident parent or person with care, as the case may be, those applications shall be treated as a single application.

(2) Where an effective application for a maintenance calculation is made, or treated as made, as the case may be, by a person with care—

(a) under section 4 of the Act; or

(b) under section 6 of the Act,

and, before that maintenance calculation is made, the person with care—

(i) in a case falling within head (a), is treated as making an application under section 6 of the Act; or

(ii) in a case falling within head (b), makes a subsequent effective application under section 4 of the Act,

with respect to the same non-resident parent, those applications shall, if the person with care does not cease to fall within section 6(1) of the Act, be treated as a single application under section 6 of the Act, and shall otherwise be treated as a single application under section 4 of the Act.