2.1 Civil aviation in the United Kingdom is governed by legislation (principally European
legislation, and the Air Navigation Order and its associated Rules of the Air
Regulations) and International Standards and Conventions (principally those published
by ICAO and EUROCONTROL) with which the United Kingdom, as a State, has
agreed to comply.
2.2 The requirements contained in this document are applicable to air traffic services
(defined in SES Regulations as flight information services, alerting services, air traffic
advisory services and ATC services (area, approach and aerodrome control services))
and technical aspects of other services such as CNS, Air/Ground, OPC and those
services related to ‘sporting’ activity, such as gliders, balloons and parachuting
provided to aircraft within the UK Flight Information Region (FIR) and other airspace
for which responsibility has been designated to the United Kingdom through
international agreement.
2.3 Special arrangements may exist in the vicinity of the UK FIR boundary and in respect
of certain off-shore installations. ATS service providers to whom such arrangements
apply, are expected to discuss their particular circumstances with the appropriate
Regional Manager ATS Safety Regulation, or the Head of En-Route and College
Regulation at Aviation House, Gatwick.
2.4 The requirements in this document do not directly consider externally provided
services (such as public telephone/telecommunication services), but do encompass
the manner in which these services are used within an air traffic service. It should be
noted that such services, although external to the provision of an air traffic service,
may be subject to regulation by other parts of the CAA or other agency.
2.5 Externally supplied services are assumed to meet all relevant requirements and
Standards. It is the responsibility of the ATS provider to ensure that the consequences
of safety-related failures associated with externally provided data or services are
adequately considered and mitigated against.
2.6 It should be noted that requirements described in this document may not apply to all
types of service.
REG CAP 670-2003 history
2009REG CAP 670-2009 Acceptable Means of Compliance to CAP 670 SW 01 Guidance for Producing SW 01 Safety Arguments for COTS Equipment Issue 2
2008REG CAP 670-2008 Air Traffic Services Safety Requirements Second Issue; Incorporating Amendments up to and including 22 May 2009