Read the Malaysian drone regulations as an operator rather than a hobbyist and an awkward fact appears. Every commercial inspection drone sits in the most restricted category the rules define, and the standoff distances make close-up inspection impossible without authorisation.
Three Classes, and You Are Never in the Easy One
Part XVI of the Malaysian Civil Aviation Regulations 2016 sorts unmanned aircraft into three classes: aerial work, small drones, and drones over 20 kilogrammes. Most operators have read about the middle class and assume it describes them. It almost never does.
Regulation 142 covers a small drone, meaning one of 20 kilogrammes or less without fuel. The person in charge must be satisfied the flight can be made safely and must maintain direct unaided visual contact with the aircraft to monitor its flight path and avoid collisions. Generally, no authorisation is needed. That is the regime behind the widespread belief that a sub-20 kg aircraft can simply be flown.
Regulation 143 then carves out the small surveillance drone: a small drone equipped for surveillance or data acquisition. Every inspection aircraft ever flown over an asset is equipped for data acquisition, because producing data is the entire point. So an inspection drone is not in regulation 142’s permissive regime at all. It is in regulation 143, which requires authorisation in the circumstances that describe most industrial work.
A camera is data acquisition. The moment a drone carries one for inspection, the class that needs no authorisation stops applying to it.
Regulation 141 sits alongside, requiring authorisation to fly a drone for aerial work, described as providing specialised services in areas such as agriculture, construction and photography. Commercial inspection falls naturally within that description, so an operator is typically engaging two provisions at once rather than choosing between them. Regulation 144 completes the set: a drone over 20 kilogrammes without fuel requires authorisation to be flown for any purpose at all.
The Distances That Rule Out the Job
Regulation 143’s conditions are where the practical difficulty lives, and they are worth reading as geometry rather than as a list.
Over or within 150 metres of a residential, commercial, industrial or recreational area, or of an open-air assembly of more than 1,000 people.
Within 50 metres of a vessel, vehicle or structure not under the control of the person in charge.
Within 50 metres of any person.
Within 30 metres of any person during take-off or landing.
Why that is decisive: a yard, refinery, jetty or fabrication shop is an industrial area. A working facility has people on it. An inspection flight has to approach the structure closely enough to resolve a defect. Each of those three facts independently triggers the authorisation requirement, and together they mean authorisation is the normal condition of the work rather than an exception to it.
The 50 metre standoff from any structure not under the control of the person in charge is the one worth dwelling on. Useful inspection photography happens at a fraction of that distance. The rule therefore does not restrict how inspection is done so much as establish that inspection cannot be done at all on an unauthorised basis, which is a different and more useful thing for a client to understand.
The control qualifier also rewards attention. A structure under the control of the person in charge is treated differently from one that is not, which makes the contractual and operational question of who controls the asset during the flight a regulatory question too. On a live facility with multiple contractors, that is not always obvious, and it should be settled before the flight rather than argued afterwards.
The Limits That Apply Whatever You Are Flying
Regulation 140 imposes general restrictions on all unmanned aircraft, irrespective of mass or purpose, and these are the ones that most often make a planned flight impossible.
Flight within an aerodrome traffic zone is prohibited. Flight above 400 feet above the surface is prohibited unless the authority authorises it. The same limits apply in airspace classes A, B, C and G as notified. And no article or animal may be dropped from a drone, a prohibition the commentary describes as admitting no exception.
Two of those deserve comment. The inclusion of class G, which is uncontrolled airspace, surprises operators who assume the restriction is about controlled airspace and busy approaches. And the aerodrome traffic zone has designated dimensions around airstrips, including water airstrips, and heliports, which matters for offshore and remote work far more than the word aerodrome suggests. A platform helideck, an airstrip serving a plantation estate or a water landing area near a coastal facility all change the airspace picture around a site that otherwise looks empty.
Operators look for the nearest airport. The constraint that catches them is a helideck or a water landing area nobody thought of as aviation infrastructure.
The 400 foot ceiling then interacts with the work. Many inspection subjects, a flare stack or a tall structure among them, approach or exceed that height, so the survey plan has to establish early whether the job can be done inside the ceiling or whether an authorisation covering greater height is part of the scope.
What the Site Survey Has to Establish
Because the authorisation requirement is normal rather than exceptional, the planning question is not whether permission is needed but what the application has to say. That makes the pre-flight survey a document-producing exercise.
The fourth item is the one that converts a regulatory requirement into an operational plan. Fifty metres from any person, on a facility with people working on it, means either an exclusion zone that someone has to enforce or a shutdown window. Both have a cost and a permit, and both belong in the scope of work rather than in a conversation on the morning of the flight.
The sixth is a trap for operators upgrading equipment. A heavier aircraft with better sensors moves the operation from one authorisation basis to another, and the fees for the different classes are set separately under the fees and charges regulations. Confirm the current figures with the authority rather than carrying forward a number from an older document.
One Necessary Caution
The structure described here comes from the regulations and from published commentary on them, and the framework has developed since. The authority itself has changed name and form over that period, and guidance has been reissued more than once. The class structure, the standoff distances, the height ceiling and the aerodrome traffic zone restriction are stable features worth planning around, but the current position on any specific number or process should be confirmed with the authority directly rather than taken from a document of uncertain vintage.
What does not change is the planning consequence. Commercial inspection work in Malaysia is authorised work, not permitted-by-default work, and an operator who understands why that is true from the definitions rather than from a rule of thumb will write better applications and quote more honestly. Our drone training services cover the regulatory and planning framework alongside flying competence, because the envelope the aircraft may legally occupy determines what work there is to bid for.
Frequently Asked Questions
Does a drone under 20 kg need authorisation in Malaysia?
Not under regulation 142, which covers a small drone of 20 kilogrammes or less without fuel and generally requires no authorisation, provided the person in charge is satisfied the flight can be made safely and maintains direct unaided visual contact. But regulation 143 separately covers a small surveillance drone, meaning one equipped for surveillance or data acquisition, and requires authorisation in the circumstances that describe most commercial inspection work.
What are the standoff distances for a surveillance drone?
Authorisation is required to fly over or within 150 metres of a residential, commercial, industrial or recreational area, or of an open-air assembly of more than 1,000 people; within 50 metres of a vessel, vehicle or structure not under the control of the person in charge; within 50 metres of any person; or within 30 metres of any person during take-off or landing. Close-up inspection of a working facility engages several of these at once.
How high can a drone fly, and where is flight prohibited outright?
Under regulation 140, flight above 400 feet above the surface requires authorisation, and flight within an aerodrome traffic zone is prohibited. The same limits apply in airspace classes A, B, C and G as notified, which includes uncontrolled airspace. Aerodrome traffic zones have designated dimensions around airstrips, including water airstrips, and heliports, so offshore and remote sites can sit inside one without an obvious airport nearby.
What happens when a drone exceeds 20 kg?
Regulation 144 requires authorisation to fly a drone of more than 20 kilogrammes without fuel for any purpose. Crossing that threshold therefore changes the authorisation basis rather than adding a condition to it, which matters when an operator upgrades to a heavier airframe for better sensors or endurance. Fees for the different classes are set separately under the fees and charges regulations and should be confirmed as current.
Sources: Malaysian Civil Aviation Regulations 2016, Part XVI, regulating unmanned aircraft in three classes of aerial work, small drones and drones over 20 kg: regulation 140 imposing general restrictions on all unmanned aircraft including the prohibition on flight within an aerodrome traffic zone, the prohibition on flight above 400 feet above the surface without authority authorisation, the application of those limits in airspace classes A, B, C and G as notified, and the prohibition on dropping any article or animal from a drone; regulation 141 requiring authorisation to fly for aerial work, described as providing specialised services in areas including agriculture, construction and photography; regulation 142 covering a small drone of 20 kg or less without fuel, requiring the person in charge to be satisfied the flight can be made safely and to maintain direct unaided visual contact with the aircraft to monitor its flight path and avoid collisions, and generally requiring no authorisation; regulation 143 covering a small surveillance drone, a small drone equipped for surveillance or data acquisition, and requiring authorisation to fly over or within 150 metres of a residential, commercial, industrial or recreational area or of an open-air assembly of more than 1,000 people, within 50 metres of a vessel, vehicle or structure not under the control of the person in charge, within 50 metres of any person, or within 30 metres of any person during take-off or landing; and regulation 144 requiring authorisation to fly a drone of more than 20 kg without fuel for any purpose. Aerodrome traffic zones are described as having designated dimensions around airstrips, including water airstrips, and heliports. Fees for the aerial work certificate and for the surveillance and over-20 kg classes are set under the separate Civil Aviation (Fees and Charges) Regulations 2016 · These provisions are drawn from the regulations and from published Malaysian legal commentary on them. The framework has developed since, including the establishment of the Civil Aviation Authority of Malaysia in place of the former Department of Civil Aviation, so the current position on any specific figure or process should be confirmed with the authority directly
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