17. Where—
(a)two people have given notice to register as civil partners of each other under article 6 of the Armed Forces Order 2005 before the relevant date;
(b)the relevant part of the United Kingdom for the civil partnership registration is England and Wales;
(c)the proposed civil partners have not registered as civil partners by signing the civil partnership register before the relevant date; and
(d)either or both proposed civil partners are under the age of 18 years immediately before the relevant date but both will be aged 18 or over during the applicable period as determined by article 11(4) of the Armed Forces Order 2005,
the notices of the proposed civil partnership are valid but no registering officer may officiate at the signing of the civil partnership register by them until both proposed civil partners have reached the age of 18 years.