- CAA - Civil Aviation Authority
- CRISP - Community Regeneration and Improvement Special
- CPA - Countryside Policy Area
- CTA - Community Technical Aid
- Catchment - The area drained, either naturally
or with artificial assistance, by a watercourse, including all drainage channels, tributaries, floodplains,
estuaries and areas of water storage.
- Cell and Cellular - A cell is the area of geographical
coverage from a radio base station. "Cellular" describes such systems, but is often used to
distinguish the original analogue systems from the later digital PCN systems, although the latter themselves
- Civic Amenity Site - Site for the collection of recyclable
materials and bulky household waste.
- Code System Operator - An operator of a telecommunications
system under Schedule 2 of the Telecommunications Act 1984, known as the ‘Telecommunications Code’.
- Commercial Waste - Waste from premises used for the purpose
of trade or business, sport, recreation or entertainment.
- Common Landlord Area - An area defined by the Housing
Selection Scheme comprising one or more social landlords but which is considered homogeneous for the
purposes of housing allocations. CLA’s are generally smaller than Local Housing Areas to allow applicants
to be more specific re areas of choice.
- Compost - Organic matter decomposed aerobically or anaerobically
and used as a fertiliser or soil conditioner.
- Conservation Area - Area of high architectural or historical
interest within towns, designated under the Planning (NI) Order 1991 and identified in Development Plans.
- Contiguous Development Zone (CDZ) - The continuous built
up area centred on Belfast and which extends in an arc from Jordanstown to Knocknagoney and includes
Metropolitan Carrickfergus, Metropolitan Newtownabbey, Belfast City, Metropolitan Lisburn, Metropolitan
Castlereagh and Metropolitan North Down.
- Contaminated Land - land which has been subject to the
addition of a material or materials to such a degree as to render it unfit for its intended purpose.
- Construction/Demolition Waste - Masonry and rubble wastes
arising from the demolition or construction of buildings or other civil engineering structures.
- Controlled waste - Refers to household/municipal, industrial
and commercial waste.
- Convergence - Denotes the meeting of separate communications
technologies so that they no longer have unique associations with particular functions. For instance,
an internet television can combine some of the functions of a radio, television, personal computer and
telephone (source DTI).
- Culvert - A structure with integral sides, soffit and
invert, including a pipe that contains a watercourse as it passes through or beneath a road, railway,
building, embankment etc, or below ground.