A committee of MPs is expected to take evidence in Stornoway later on proposed changes to the Maritime and Coastguard Agency (MCA).
The Western Isles town’s coastguard station could close under UK government plans aimed at modernising the service.
Comhairle nan Eilean Siar, Shetland Islands Council, Highland Council and Oil & Gas UK are to give evidence.
The Transport Select Committee has been holding hearings across the UK.
The inquiry, being held at the Caladh Inn in Stornoway, is due to start at 1100 BST.
Under the plans, 10 of the UK’s 18 round-the-clock coastguard centres could shut in an effort to reduce costs and modernise the service.
Five remaining sites will operate just during daylight, with the only 24-hour centres planned for Aberdeen, Dover and the Southampton/Portsmouth area.
The five daylight-only stations will be Swansea, Falmouth in Cornwall, Humber, either Belfast or Liverpool, and either Stornoway or Shetland.
Critics of the plans argue the cuts will lead to a lack of local knowledge and may ultimately cost lives.
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