The original version of the Public Health Regulations (no.18) specifically added Peel to the entry points permitted. Details of entry via Peel were to be added by CoMin through a Directive (a GC). This was amended during its approval by Tynwald, with the power to specify any Manx port as an entry point for private vessels, as well as the detailed provisions, given to CoMin under the final reg.7(1).
This power has now been exercised in relation to Peel Harbour, under G.C. 2021/0091. A private vessel may dock at Peel Harbour at specified times published by the Chief Secretary, such specified times not being permitted outside 0500 and 2300. Specified times may change daily. so long as such changes are published.
Peter Edge's Law Blog. 