The Liberian Government has notified the following instructions regarding the maintenance of lifeboat air support systems by Marine Notice SAF-001(Rev.04/05):

1. Periodic Inspections
In accordance with the manufacturer's instructions and guidelines the air support system shall be subject to periodic inspection carried out by the vessel's crew on a monthly basis as required by SOLAS 2004 Edition, as amended, Regulation 20.7.
2. Annual Examinations
All lifeboat air support systems and bottles shall be examined at least annually by the attending class society surveyor as part of the annual statutory survey for the Safety Equipment Certificate or MODU Code certificate.
3. Recharging
If the air pressure in the bottles should fall below ten percent (10%) of the normal full level air pressure, then the air bottles should be recharged in accordance with the manufacturer's instructions and guidelines. The air bottle can only be recharged on board from an air compressor that has been certified for providing air that is fit for human consumption. If applicable, the on board air supply air recharging systems should be checked for air quality as part of the annual statutory for the Safety Equipment Certificate or MODU Code certificate. If the ship is not equipped with such an air compressor then the bottle must be sent ashore to an authorized service facility for recharging or exchange.
4. Hydrostatic testing
Hydrostatic testing of lifeboat air support bottles shall be carried out once every five years or in accordance with the recommendations of the bottle manufacturer whichever is due the earliest. The air support bottles shall also be hydrostatically tested prior to refilling a bottle that has been discharged. The hydrostatic test date must be permanently marked on the bottles or, if the bottles are made of a material that cannot be stamped with date, a tag indicating the hydrostatic test date
should be securely attached to the bottles. Intervals for hydr