Functions exercisable solely by WAG or the National Assembly for Wales.

Part I:General Provisions for Traffic Regulation:

• sections 1-4 and Schedule 1: Power to make traffic Regulations for trunk roads and motorways. Power to consent to traffic regulation orders made by local traffic authorities.
• section 1(3A): Power to consent to a traffic regulation order made by a local traffic authority.
• sections 9 and 10: Power to experimental traffic orders for trunk roads and motorways.

Part II: Traffic Regulation in Special Cases:

• sections 14-16: Power to make temporary orders for trunk roads and motorways and to make regulations for procedure for making the oders.
• sections 16A-16C: Prohibition or restriction of traffic on trunk roads or motorways for special events.
• section 17: Powers to make regulations with regard to specific special roads. See Exceptions.
• section 22: Orders relating to traffic regulation for special areas in the countryside.
• sections 22BB and 22BC: Power to prescribe by order materials and modifications for the purpose of section 22BB. See Shared Powers.
• section 24: Power to create pedestrian crossings on trunk roads.

Part IV:Parking places:

• sections 35, 46 and 46A: Power to approve apparatus for charging for parking and the procedure for varying parking charges.
• section 35B: Regulations relating to the display of information at off-street parking places.
• section 51: Power to approve parking devices for parking places.
• section 75: Power to make regulations specifying classes or descriptions of authorities, or particular authorities (for example those which may be designated under section 99 of the Local Government Act 2003 as high-performing authorities), as having complete freedom in the way they spend surplus parking income once the needs of parking provision have been considered.
• section 56: Power to make grants for off street parking designated by the Secretary of State.
• section 63A: Power to prescribe for the parking attendants uniforms and the functions for which such uniforms must be worn.

Part V:Traffic Signs:

• sections 64 and 65: Power to prescribe a variant (etc) as in section 64 other than so far as it confers the power to- (1) prescribe a variant of any sign of a type prescribed by "the Ministers" and carrying words in English, being a variant identical with a sign of that type et for the substitution or addition of words in Welsh (and any increase in size needed to accommodate the substituted or added words); and (2) authorise signs not otherwise prescribed;
• section 68: Power to place a traffic sign on trunk road or motorway.
• section 69: Power to require removal of a sign adjacent to a trunk road or motorway.
• section 70: Default powers.
• section 79: Power to give grants or loans to local highway authorities towards traffic signs expenses.

Part VI: Speed Limits:

• sections 82-83: Directions as to whether a particular road is a restricted road for speed limit purposes.
• sections 84 and 85(1): Orders as to speed limits on trunk roads and erection of speed limit signs.
• section 85(3): Default powers as to speed limit signs on non-trunk roads.
• section 87: Power to prescribe exemptions from speed limits. Power to make provision about courses of training in the driving of vehicles at high speed. Power to charge fees.

Part VII: Bollands and Other Obstructions:

• section 93: Power to require or authorise local highway authority to place bollards on roads leading to a trunk road.

The following Ministerial functions in sections 99 to 103 are exercisable solely by the Welsh Ministers but see also No powers.

• section 99: Removal of vehicles illegally, obstructively or dangerously parked, or abandoned or broken down. Power to make consequential provisions.

The Secretary of State may make provisions, through regulations, for the removal of vehicles which have been permitted to remain at rest (a) on a road in contravention of any statutory prohibition or restriction; or (b) on a road in a position, condition or as to cause an obstruction to other persons using the road, or likely to cause a danger to them; or (c) on a road, or on any land in the open air, in such a position etc. which appears to an authority, empowered by the regulations to remove such vehicles, to have been abandoned without lawful authority, or which have broken down on the road.

• section 100: Interim disposal of vehicles removed under section 99.

Any vehicle removed by the council of a district in England under section 99 of this Act has to be delivered to the council of the county comprising the district in accordance with such arrangements (expenses etc.) as may be agreed between the two councils, or in default of agreement, as may be determined by the Secretary of State.

• section 101: Ultimate disposal of vehicles abandoned and removable under this act. (1) Subject to subsections (3) to (5) a competent authority has the power to dispose of a vehicle, in a manner which they see as fit, if it appears to have been abandoned and has been, or could at any time be, removed in pursuance of (a) an order to which this section applies, or (b) regulations under section 99 of this Act.

The Secretary of State may require an authority by whom a vehicle is disposed of in pursuance of this section to produce information relating to the disposal as may be prescribed to such persons.

• section 102: Charges for removal, storage and disposal of vehicles. (1) This section has effect where a vehicle is (a) removed from a parking place in pursuance of an order to which section 101 of this Act applies, or (b) is removed from a road, or from land in the open air, in pursuance of regulations under section 99 of this Act.. (2)(a) The power of the appropriate authority to claim from any person responsible such charges as may be prescribed by the Secretary of State in respect of the removal of the vehicle; (b) the power of the chief officer of a police force or a local authority in whose custody a vehicle is being held to claim from any person responsible such charges as may be prescribed by the Secretary of State in respect of the storage of the vehicle; (c) the power of the chief officer of a police force etc. to recover from any person responsible such charges as may be prescribed by the Secretary of State through the disposal of a vehicle in pursuance of section 101 of this Act. -section 103: Supplementary provisions as to removal of vehicles. The power of the Secretary of State through regulations to provide for any vehicle which is or was in any part of a loading area while the parking of it in that area is or was prohibited by virtue of section 61 of this Act, sections 99 to 102 of this Act shall have effect with such additions, omissions and amendments as are prescribed by the regulations. -section 104: Immobilisation of vehicles illegally parked. (1) The power of a constable who finds on a road a vehicle which has been left in contravention of any prohibition or restriction imposed by or under any enactment to - (a) fix an immobilisation device to the vehicle while it remains in the place in which he finds it; or (b) move it from that place to another place on the same road etc., or authorise another person to move it by virtue of paragraph (a) or (b).

(4) Amount of charge for release of the vehicle to be prescribed by the Secretary of State.

(9) "Immobilisation device" means a device or appliance designed or adapted to be fixed to a vehicle to stop it from being driven away or otherwise put in motion, a device approved by the Secretary of State for use for that purpose in accordance with this section.

• section 103: Power to issue guidance as to the use by local authorities of their powers under sections 99 to 102.

Miscellaneous:

• sections 124 and Schedule 9: Reserve powers in relation to certain orders coming within the jurisdiction of a local highway authority.
• Schedule 9, paragraph 27: Power to vary or revoke order after consulting with authorities who have made the scheme.