(1) Subject to Regulations 4A, 4B, 4C, 4D and 4E, a service provider established in another Member State who temporarily posts workers in the State shall -

(a) make a declaration (in the English language and using the form set out in Schedule 1) and furnish it to the competent authority no later than the date on which he or she commences providing the service, containing -

(i) the identity of the service provider,

(ii) the anticipated number of clearly identifiable posted workers,

(iii) the anticipated duration and envisaged beginning and end dates of the posting of each worker,

(iv) the address of the workplace to which each worker is to be posted, and

(v) the nature of the services justifying the posting,

(b) keep at a place identified by the service provider to the competent authority and make available to the competent authority at its request, in paper or electronic form, for the duration of the period of the posting, in respect of each posted worker -