{
  "url": "https://openlegislation.uk/merchant-shipping-submersible-craft-construction-and-survey-regulations-1981/schedule-1/paragraph-5",
  "json_url": "https://openlegislation.uk/merchant-shipping-submersible-craft-construction-and-survey-regulations-1981/schedule-1/paragraph-5.json",
  "legislation": "uksi/1981/1098",
  "legislation_title": "The Merchant Shipping (Submersible Craft Construction and Survey) Regulations 1981",
  "legislation_url": "https://openlegislation.uk/merchant-shipping-submersible-craft-construction-and-survey-regulations-1981",
  "path": "schedule/1/paragraph/5",
  "kind": "paragraph",
  "number": "5",
  "heading": "Life Support",
  "text": "(5.1) Manned submersible craft shall be provided with the means of life support to maintain all occupants carried at or near atmospheric pressure in a safe and breathable atmosphere for a minimum period of 96 hours over and above the planned dive time.\n(5.2) Manned submersible craft shall:—\n(5.2.1) contain adequate equipment to maintain a safe and breathable atmosphere in the crew compartment. The equipment shall be capable of functioning whether or not the main electrical power source of the craft is operable. When oxygen is stored, in bottles, at least two shall be provided. If these are fitted externally, they shall be piped separately to the inside of the submersible craft;\n(5.2.2) contain monitoring devices to test the atmosphere in the crew compartments;\n(5.2.3) contain valves, gauges and other equipment as are necessary to monitor the pressure, temperature and humidity and (where practicable) to control the pressure, temperature and humidity within the crew compartment;\n(5.2.4) be equipped with an adequate emergency breathing system for use in case of fire or smoke;\n(5.2.5) at all times carry supplies of food and water;\n(5.2.6) under normal conditions and in the event of an emergency either have sufficient power reserves to maintain an adequate temperature in the crew compartment, or be equipped with a means of thermal protection of the crew;\n(5.2.7) contain the minimum of flammable and toxic material;\n(5.2.8) be fitted with an adequate fire extinguishing system.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [
    {
      "type": "amended",
      "affecting": "uksi/1987/306",
      "affecting_title": "The Merchant Shipping (Submersible Craft) (Amendment) Regulations 1987"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1981/1098/schedule/1/paragraph/5",
    "retrieved_at": "2026-10-29T18:35:26.362503+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}