Authorised Personnel Only Sign

Authorised Personnel Only Sign

An authorised personnel only sign is used to mark compartments, control rooms and equipment spaces aboard ship where entry is limited to a defined group of trained crew rather than the ship’s company generally. Unlike a bare no-entry pictogram, it implies that some people are permitted inside, provided they have been briefed, trained or assigned to that space, which makes it well suited to bridges, engine control rooms, radio rooms and technical workshops where a mix of restricted and permitted access is normal.

This authorised personnel only sign follows ISO 7010 pictogram design, combining a black access-restriction symbol with the standard red circle and diagonal bar on a white background, so the message is understood at a glance by crew and visitors regardless of language. It is stocked under IMPA code 33.8545 and ISSA code 47.585.45, letting ship chandlers and marine suppliers order the exact pictogram a vessel operator specifies without needing to describe wording or layout separately.

Where to fit an authorised personnel only sign

Common locations for an authorised personnel only sign include engine control rooms, cargo control stations, electrical switchboards, IT and communications rooms, and any workshop containing equipment that only qualified crew should operate or adjust. The pictogram is also appropriate for shore-based facilities such as port control buildings, terminal plant rooms and maintenance workshops, where contractors and visiting personnel need a clear signal that the space is limited to rostered or qualified staff. Placing the sign directly on the access door or hatch, at a height visible to anyone approaching, ensures the restriction is understood before entry rather than after.

Safety Sign Hub manufactures each authorised personnel only sign in a fire-retardant, photoluminescent material that continues to glow if main power or lighting is lost, which is a meaningful advantage in control rooms and technical spaces where continued orientation matters during an emergency. The substrate is also selected to resist the humidity, salt exposure and temperature variation typical of marine service, so the sign stays legible for the working life of the compartment rather than needing early replacement.

Safety Sign Hub stocks this authorised personnel only sign in the standard sizes used across marine and industrial signage, with both self-adhesive and rigid panel options depending on where it will be mounted. A self-adhesive backing suits a smooth control room door, while a rigid panel with pre-drilled holes is often chosen for an exterior bulkhead or a surface exposed to regular cleaning and handling. Ordering against the IMPA and ISSA codes listed here removes any doubt about which pictogram and wording combination a chandler will supply, which matters when several similar-looking access signs are stocked side by side in a ship’s chandlery catalogue.

Supporting a documented access control regime

Fitting an authorised personnel only sign at each restricted compartment supports a vessel’s or facility’s documented access control arrangements and aligns with the pictogram conventions set out in ISO 7010, which underpins Australia’s AS 1319 safety signage standard. For fleet operators, reordering the same IMPA and ISSA coded sign for every vessel keeps signage consistent across sister ships, so crew transferring between vessels immediately recognise which spaces require specific authorisation before entry, reducing the chance of an untrained person wandering into a restricted control room or technical space by mistake.

Provisioning this sign is typically handled during a scheduled port call, when a vessel’s safety officer or purchasing department reviews the signage inventory against the compartments actually fitted on board and reorders anything missing, faded or damaged. Because the IMPA and ISSA codes correspond to one specific pictogram, a chandler filling that order can supply the correct sign without back-and-forth over wording, even when the request comes through a general provisioning list alongside dozens of unrelated stores items. This makes it straightforward to keep every control room, switchboard space and technical workshop across a fleet marked with the same recognisable authorised personnel only sign, regardless of which port or supplier handled the original order.

Display this authorised personnel only sign at engine rooms, bridges, and technical spaces to restrict entry to qualified crew members. Browse our full range of Prohibition Signs for more IMO-compliant maritime safety signage.