3.—(1) An applicant who is a government department is not required to meet the criterion in paragraph 2.
(2) Any other applicant who is not under an obligation to comply with indemnity rules is not required to meet the criterion in paragraph 2(2) if he demonstrates to the reasonable satisfaction of the registrar that it would not be practicable for him to meet the criterion and that such indemnity insurance is unnecessary in view of his likely use of the network and his likely ability to meet any liability arising from such use.