Regulation 5 Issue and extension of safety certificates
If the Secretary of State is satisfied, on receipt of the Declaration of Survey in respect of the submersible craft and of the supporting equipment, that they comply with these Regulations, he may issue to the person applying therefor safety certificates, in respect of the submersible craft and in respect of the supporting equipment specified in the certificates. The certificates shall remain in force for two years or for such shorter period as may be specified in the certificates subject to satisfactory inspection by a surveyor after 12 months from the date of issue or until suspended or revoked by the Secretary of State.
Safety certificates may be extended by the Secretary of State without a Declaration of Survey for such further period, not exceeding four months, as he thinks fit.