Service classifications, age, design and life extension of buses

Light and heavy bus service classifications

If you use a light bus or heavy bus to provide a service requiring operator accreditation, vehicle age limits apply based on the vehicle classification.

• Open classification: The vehicle may operate over an unlimited distance.
• Regional classification: The vehicle may operate within a radius of 350km from the first passenger pick-up point.
• Local classification: The vehicle may operate within a radius of 40km from the first passenger pick-up point, or a radius exceeding 40km if the journey remains entirely within a single or contiguous urban area.

Maximum age limits for light and heavy buses

The following table shows the maximum age limits for light and heavy buses based on service classification.

Bus type	Open classification	Regional classification	Local classification
Heavy bus: a bus with a gross vehicle mass greater than 5 tonnes.	25 years	25 years	25 years
Light bus: a bus with a gross vehicle mass 5 tonnes or less	10 years	20 years	20 years

Calculating the age of a bus

To calculate the age of your bus, you must use the first applicable method from the following list, in order of availability:

1. Date of first registration anywhere.
2. Date on receipt for the first sale of the vehicle.
3. Date of manufacture of the original body (for example, body compliance plate, or manufacturer's letter).
4. Date of manufacture of the original chassis (for example, chassis compliance plate or manufacturer’s letter).

Meeting bus design requirement based on service classification

If the bus is used in the wilderness, it must comply with the Australian Design Rules (ADRs) applying to a non-route service bus that were in force when the bus was manufactured. For more information refer to Vehicles for wilderness areas on the Operator accreditation vehicle requirements webpage.

Dispensation cannot be given from meeting mandatory ADRs applicable to the age and classification of a vehicle. Buses manufactured before 20 May 1992 may be exempted from some requirements of the Code of Practice S6 "Omnibus Licensing Evaluation" if the operator can demonstrate, to the satisfaction of the department, that all relevant safety standards are maintained.

The following table outlines the design requirements for buses based on their service classification

Design requirement	Open classification	Regional classification	Local classification
Australian Design Rules (ADRs)	Applicable to non-route service buses with high-back seats (defined as seats with a reference height of 1 metre or more, as per ADRs). Buses with high-back seats generally require seat belts in accordance with ADR 68 (exceptions may apply).	Applicable to non-route service buses.	Applicable to route service buses.
Brakes	Dual circuit.	Dual circuit.	Dual circuit.
Seating	Forward or rearward-facing coach-style (high-back) seats.	Forward, rearward-, or side-facing seats. Side-facing seats must be fitted with lap seat belts complying with ADR 4 and ADR 5.	Forward, rearward-, or side-facing seats.

Requirements for a heavy bus service life extension

As an alternative to replacing an ageing heavy bus, owners may consider refurbishing it to extend its service life. Two types of refurbishments are available, and owners must make a commercial decision to determine whether to replace or refurbish the bus.

This information outlines the requirements for:

• Partial refurbishment to achieve a five-year life extension (up to the 30-year maximum age requirement).
• Full refurbishment to meet age zero requirements.

Life extensions, including the 5-year service life extension or the age zero provision, apply to heavy buses classified as open, regional, or local. These provisions allow buses to operate beyond the fixed 25-year maximum age limit, provided the specific conditions for either the 5-year service life extension or the age zero provision are met. The maximum age of a bus with a life extension applied is determined by specific conditions, including the bus's classification, manufacturing date, and whether a service life extension was granted under the relevant repealed provisions.

The following table outlines the maximum age of a buses with a life extension applied

Bus type	Conditions for life Extension	Maximum age
Heavy bus (open classification)	Manufactured on or after 1 January 1990, with a 5-year service life extension granted under the relevant repealed provisions.	30 years
Heavy bus (open classification)	Manufactured on or after 1 January 1995, without a 5-year service life extension granted under the relevant repealed provisions.	25 years

Requirements for a 5-year life extension for a heavy vehicle

A 5-year service life extension can only be granted when a bus is at least 18 but not more than 25 years old.

To qualify for a 5-year life extension, the following requirements must be met:

• A documented frame inspection by a NHVR Safety Officer must be completed (prior to 2024 this inspection may have been completed by a Transport Inspector).
• Structural integrity and serviceability: the chassis, body, suspension, steering, and brake components must be inspected and certified by an approved person accredited by the department to certify vehicles under code S13.

ADR compliance: the bus must comply with all ADRs applicable when it was 5 years old, except for ADRs related to exhaust emissions.

Additional conditions

• A 5-year life extension can only be performed once in the life of a bus.
• The extension can only be applied for after the bus turns 18 years old but before it turns 25 years old.
• Buses with a 5-year life extension may continue operating under their current classification (open, regional, or local) until they reach 30 years of age.

Conditions of 5-year refurbishment

Australian Design Rules (ADRs)

• The bus must comply with ADRs applicable when it was 5 years old, excluding exhaust emissions.

Body

The body must be in good structural condition. If there is structural damage, corrosion, or the bus has not passed a frame inspection within the last five years, a body framework inspection is required. For more information, refer to the Structural inspections and the repair of heavy buses on the Operator accreditation vehicle requirements webpage.

• Interior trim must be in good condition.
• Side-facing seats in regional classification buses must be replaced with forward- or rearward-facing seats.
• Exposed handrails, seats, and partitions must be padded. For more information, refer to the Bus padding requirements for specified buses the Operator accreditation vehicle requirements webpage.
• Damaged floor coverings must be replaced with non-slip material.
• Windows, seals, and paintwork must be in good condition.

Chassis and suspension

• Components must be cleaned, inspected, and crack-tested (if necessary) to ensure they are rust-free, structurally sound, and within service wear limits.

Steering

• Power steering components must be free of leaks.
• Hydraulic hoses must be replaced if cracked or oil-affected.
• Stub axles and steering arms must be crack-tested, and defective components replaced. Repairs using heating or welding are not acceptable.

Brakes

• The entire braking system must be overhauled, including replacing flexible air or hydraulic lines, valve seals, and diaphragms.
• The braking performance must meet the requirements outlined in Code S13, section 3.1.5 of the Queensland Road Vehicle Modification Handbook. For more information, visit the Vehicle modifications page on the Department of Transport and Main Roads website.

Electrical systems

1. All electrical fittings, lights, reflectors, and wiring must be in serviceable condition.
2. Lenses must be free of cracks and discolouration.
3. Wiring must be secure, shielded from excessive heat, and in good condition.

Engine and driveline

• Components must be inspected to ensure reliability, including:
  • Adequate power output.
  • No leaks (oil, water, air, or vacuum).
  • No excessive smoke emissions (visible smoke must not persist for more than 10 seconds under load).
  • Secure transmission and driveline components.

Requirements for an age zero refurbishment for a heavy vehicle

An age zero refurbishment involves a complete refurbishment of the rolling chassis, fitting a new body, and upgrading the bus to meet all safety and emission standards applicable to a new heavy bus at the time of refurbishment.

To meet age zero refurbishment standards, the following requirements must be fulfilled:

• ADR compliance: the bus must comply with all ADRs applicable at the time of refurbishment.
• New body: a completely new body (including all interior and exterior fittings) is required.
• Mechanical components: all mechanical components (engine, gearbox, steering, suspension, axles, etc.) must be rebuilt, including replacing all gaskets, seals, bearings, and wearing components.
• Structural components: structural components (e.g., chassis and spring hangers) must be dismantled, inspected, and crack tested.
• Braking system: the braking system must be fully rebuilt, with all components meeting national or Society of Automotive Engineers (SAE) standards.

General requirements for age zero refurbishments

The following general requirements apply to all refurbishments, including age zero refurbishments:

ADR certification

ADR compliance must be certified by an approved person accredited by the department.

Recently Refurbished Components

Components that have been refurbished or replaced within:

• 1 year before the extension is obtained
• 50,000km travelled by the bus, do not need to be dismantled again if documentary evidence is provided to the approved person certifying the vehicle.

Modifications:

All modifications must:

• comply with the National Code of Practice - Heavy Vehicle Modifications
• be certified by an approved person.

Final certification

After refurbishment, the vehicle must undergo a full evaluation by an approved person accredited by the department to certify vehicles under code S13 to validate passenger capacity and safety compliance.

Steps for certification

1. Evaluation under Codes S4, S5, and S6, used for reference only to Code S13:
   • the vehicle must be evaluated under these codes to ensure compliance with passenger capacity and safety standards.
2. Certificate of Modification and Modification Plate:
   • upon successful evaluation:
     • a Certificate of Modification will be issued
     • a Modification Plate will be affixed to the vehicle.

Process to obtain a five year or age zero heavy bus service life extension

Submission process

1. Obtain a certificate issued by an approved person.
2. Submit the certificate to your local Translink Regional Office.

Certificate requirements

The certificate must include:

• the date of the inspection
• Confirmation that the frame of the bus was inspected by the NHVR and found to be in a satisfactory structural condition.
• Confirmation that no defect was found that would affect the bus’s safe use on the road.

Notification of grant

If the extension is granted the operator will be notified in writing.

Effect of the service life extension

Age zero refurbishment

For an age zero refurbishment, the age of the bus is reset to zero, starting from the date the extension is granted.

5-Year Service Life Extension

For a 5-year service life extension, the maximum age of the bus is extended by five years. The bus may continue to operate under its current classification (Open, Regional, or Local) until it reaches 30 years of age.

References

Transport Operations (Passenger Transport) Regulation 2018 (QLD)

• Section 18N: Requirements for the age of buses and structural inspections.
• Section 18Q: Suitability of buses for service classifications (open, regional, and local).
• Schedule 1AA, Part 1: Definitions.
• Schedule 1AA, Part 2: Maximum age limits for light and heavy buses based on service classifications.
• Schedule 1AA, Part 3: Conditions for heavy bus service life extensions, including five-year life extensions and age zero refurbishments.
• Schedule 1AA, Part 4: Structural inspection and repair requirements for heavy buses.

Read the full PT Regulation on the Queensland Legislation website.

Australian Design Rules (ADRs)

• ADR 4/00 and ADR 5/00: Seatbelt requirements for side-facing seats.
• ADR 68/00: Seatbelt and rollover strength requirements for high-back seats.
• ADR 59/00: Standards for heavy buses.

Access the ADRs on the Department of Infrastructure, Transport, Regional Development, Communications, and the Arts website.

Queensland Road Vehicle Modification Handbook

• Code S4, S5, and S6: Evaluation of passenger capacity and safety compliance for refurbished buses.
• Code S13: Braking performance requirements.

Access the Queensland Road Vehicle Modification Handbook on the Department of Transport and Main Roads, Vehicle modifications webpage.