Department for Transport...Parking

Procedures to create parking places
Local authorities must go through a process called 'Procedure Regulations' before creating parking or traffic controls. The process usually involves:
consultation with local bodies and representatives;
advertising the proposal;
considering objections from the public;
deciding whether or not to make minor changes to the proposal;
holding an inquiry if necessary;
making the order;
advertising the order; and
implementing the order.
The Secretary of State follows similar procedures in relation to major national roads.

Controlled Parking Zones
A local authority can create Controlled Parking Zones (CPZs). A CPZ is an area in which there are parking restrictions indicated by means of yellow lines except where parking places are provided. Parking places are identified by use of white bays. Parking may be restricted to residents at certain times of the day or restricted to a certain time.
A CPZ is often used where there is a large demand for parking spaces from residents, shoppers or commuters. CPZs must have signs at their entrances and exits to tell drivers about the restrictions.
Two traffic orders may be needed to introduce a CPZ:
waiting and loading restrictions; and
parking places.
Single yellow lines in a CPZ that do not have their own specified restriction times operate at the same time as the CPZ.

Consolidation and minor orders 21.—(1) In this regulation—
(a) "consolidation order" means an order which—
(i) revokes provisions of one or more existing orders;
(ii) re-enacts those provisions without any change of substance, other than changes having one or more of the effects described in Part I of Schedule 4, and
(iii) has no other effect;