Aggregation of linked schemes
18 Where a company is a trustee of two or more schemes which are treated as a single scheme by virtue of Article 18(8) or regulation 5(2), this Part and all other provisions of these Regulations as they have effect in relation to such a company and such schemes (except regulations 4 to 6) apply as if those schemes were a single scheme and the members of each of the schemes were members of that scheme.