Singapore has no single drone rule. Which requirements apply depends on your drone’s weight and where you fly it.
Over 250 grams: register and broadcast your identity
The Civil Aviation Authority of Singapore states two requirements at the same weight line: “Register your UA if the total weight exceeds 250g” and “Equip your UA with Broadcast Remote Identification if the total weight exceeds 250g.” A drone that needs one needs the other.
Between 1.5kg and 7kg: big public events
This rule applies to drones “exceeds 1.5kg but weighs less than or equal to 7kg” and only in one situation: “in a place that is publicly accessible for an event that is attended by more than 50 individuals at any time during the event.” For a drone in that weight band at such an event, you need a UA Basic Training Certificate or a UA Pilot Licence.
Over 7 kilograms: a full licence
At the top of the scale, the requirement is unconditional: “You must have a UA Pilot Licence if the total weight of your UA exceeds 7kg.” Weight alone triggers it, with no event-size or location qualifier.
Big events: permits as well
Separately from the training certificate, flying at a large public event has its own permit requirement: “You must have an Operator Permit and a Class 1 Activity Permit to fly your UA for an event that is attended by more than 50 individuals at any time during the event.” Depending on your drone’s weight, this can sit alongside the training certificate.
Altitude, restricted zones and airports
For drones up to 25kg, a Class 2 Activity Permit is required if you are flying in any of these situations:
at an altitude exceeding 200 feet above mean sea level within any restricted/danger area within 5km of any airport or military airbase
These are three separate triggers: altitude, restricted or danger areas, and proximity to an airport or military airbase. Any one is enough to require the permit.
Prohibited areas
No permit overrides this rule: “UA activities are not allowed within prohibited areas at all times.”
What this page does not say
It has no map or list of Singapore’s restricted areas, danger areas, airports or military airbases, which the 5km rule refers to. For those, use CAAS’s own maps and resources.
It also does not say whether a small drone flown recreationally in an unrestricted, non-event location needs any permit below the 250g registration line. The published rules are all framed as “if weight exceeds X” or “if you’re flying in situation Y”, and the absence of a stated obligation below those lines is not an explicit statement that nothing is required. If you are flying a small consumer drone in an ordinary spot, confirm with CAAS.