Your company Operations Manual, (Part A if JAA approved), should reflect the regulations in force in the state in which your aircraft is registered ( regarging seat belt/ shoulder harness usage) as a minimum, but can of course be more restrictive. You should probably consult this??
For example, the UK ANO( Air Navigation Order, 1989), part V states:
Pilots to remain at controls
33.—(1) The commander of an aircraft registered in the United Kingdom, being a flying machine or glider, shall cause one pilot to remain at the controls at all times while the aircraft is in flight. If the aircraft is required by or under this Order to carry 2 pilots, the commander shall cause both pilots to remain at the controls during take-off and landing. If the aircraft carries 2 or more pilots (whether or not it is required to do so) and is engaged on a flight for the purpose of the public transport of passengers the commander shall remain at the controls during take-off and landing.
(2) Each pilot at the controls shall be secured in his seat by either a safety belt with or without one diagonal shoulder strap, or a safety harness except that during take-off and landing a safety harness shall be worn if it is required by article 13 of this Order to be provided.
An operater may for example state in their Op's Manual (Part A if in JAA format).
Wearing of Seatbelts/ shoulder harness
(1) All required flightdeck crew shall make use of the seatbelt at all times when seated. The shoulder harness shall be worn on the ground during taxi, take-off and landing and in flight whenever the aircraft is below 10,000ft , or whenever only one crewmember is present on the flightdeck, or whenever the commander so requires.
Last edited by banana head; 13th Oct 2004 at 09:51.