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Rules Mate

Does Fatigue Risk Management System (FRMS) — Pt 121, 135, 141, 142 apply to aviation (incl. drones) businesses?

A computed answer from the Rules Mate applicability engine, with the exact condition, the outcome for every structure and size, and the primary source.

Short answer: Yes

Yes. This obligation applies to aviation (incl. drones) businesses whatever their structure or size. The deciding fact: Industry: Aviation (incl. drones).

The obligation in brief

Fatigue Risk Management System (FRMS) — Pt 121, 135, 141, 142. 1 Instrument 2019, which applies from 2 December 2021 as conditions on Air Operator's Certificates (under s 28BA of the Civil Aviation Act 1988) and on Part 138 and Part 141 certificates and flight crew licences. Each operator chooses, for each flight crew member, the appendix that sets their limits: basic limits (Appendix 1), multi-pilot, any-operation, balloon, medical transport and emergency service, aerial work and flight training appendices, or an approved Fatigue Risk Management System under Appendix 7.

Trigger: Holding an AOC or Part 138 or 141 certificate and rostering flight crew, or a pilot beginning any flight task.

Why aviation (incl. drones) get a different answer

Rules Mate runs its applicability engine across 9 business structures and 6 size bands for each of the 35 industries it maps. For 34 of those industries the answer for "Fatigue Risk Management System (FRMS) — Pt 121, 135, 141, 142" is no. Aviation (incl. drones) is one of the 1 where the answer is different: yes.

The deciding fact for aviation (incl. drones) businesses: Industry: Aviation (incl. drones)

About the industry: Aircraft operators and RPAS / drone operators regulated by CASA.

Compare a professional services (general) business with 6–19 employees structured as a Pty Ltd company: the obligation does not apply (Requires industry: Aviation (incl. drones)).

Answer by business structure and size

Each cell is the engine's outcome for a business in aviation (incl. drones) with that structure and size, assuming it sells to consumers and small businesses and holds customer contact details. "Check" means the obligation turns on a fact the industry does not settle.

"Fatigue Risk Management System (FRMS) — Pt 121, 135, 141, 142": outcome for aviation (incl. drones) businesses by structure and size
StructureNo employees1–5 employees6–19 employees20–99 employees100–499 employees500+ employees
Sole traderYesYesYesYesYesYes
PartnershipYesYesYesYesYesYes
TrustYesYesYesYesYesYes
Pty Ltd companyYesYesYesYesYesYes
Public companyYesYesYesYesYesYes
Not-for-profit (unregistered)YesYesYesYesYesYes
Registered charityYesYesYesYesYesYes
Super fundYesYesYesYesYesYes
Foreign companyYesYesYesYesYesYes

What the obligation requires

When due
Continuous: limits apply to every roster and flight duty period; the operations manual must state the chosen limits and employee fatigue responsibilities before operations; where a flight duty period exceeds 5 hours, crew must have access to a meal within the first 5 hours and at least every 5 hours after (except under an FRMS).
Evidence to keep
Operations manual setting out each applicable appendix's maximum and minimum limits, any operator-specific modifications and employee responsibilities for fatigue management; flight crew rosters and the other records and reports CAO 48.1 para 14.6 requires; fatigue reports; FRMS implementation approval and FRMS documentation where Appendix 7 is used.
Maximum penalty
CAO 48.1 requirements operate as conditions on the AOC, certificate or flight crew licence, so a breach is a contravention of those conditions under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations. Penalty amounts were not restated here.
Regulator
CASA
Jurisdiction
Commonwealth (national)

Other obligations where aviation (incl. drones) differ from the norm

Questions

Does Fatigue Risk Management System (FRMS) — Pt 121, 135, 141, 142 apply to aviation (incl. drones) businesses?
Yes. This obligation applies to aviation (incl. drones) businesses whatever their structure or size. The deciding fact: Industry: Aviation (incl. drones).
Is the answer the same for every industry?
No. For 34 of the 35 industries Rules Mate maps, the answer is no. Aviation (incl. drones) is one of 1 industries with a different answer.

Related

Sources

Computed by the Rules Mate applicability engine from the published obligation corpus; facts last checked 3 October 2026. Rules Mate is not a law firm and this is general information, not legal advice. Confirm your position with the regulator source or a qualified adviser before acting.