CSA PLUS 663

1.1 The purpose of this Guideline is to increase awareness and encourage communication among key stakeholders when considering changes to existing land use or new land use developments near to or surrounding existing pipelines. For the purposes of this document, the key stakeholders are local authorities, developers, and pipeline operators. This document is not intended to preclude development adjacent to pipelines but only to ensure consultation in areas where changes in land use are proposed.

1.2 This Guideline proposes that, at a minimum, consultation take place if a proposed development is within 200 m of the centreline of a pipeline (see Figure 1). This Guideline also urges that such consultation take place for development beyond 200 m of the centreline of a pipeline to the extent that a proposed development is still within a setback or emergency response planning zone associated with a given pipeline (e.g., some high-vapour-pressure or sour natural gas pipelines).

1.3 This Guideline provides information on the following subjects: (a) roles and responsibilities for key stakeholders (see Clause 4); (b) the pipeline industry (see Annex A); (c) products transported in pipelines (see Annex A); (d) land use planning issues with regard to pipelines (see Annex B);and (e) sources of additional information (See Annex C).

1.4 This Guideline is not intended to cover local natural gas distribution pipelines as defined in Annex A. Distribution pipelines are an integral part of local development, as are other utilities that support development. This kind of development already involves consultation among developers, local authorities, and local distribution (pipeline) companies.

1.5 Risk management is a framework that uses an integrated approach for assessing whether a risk is acceptable. It considers the risk and benefits of the development and facilitates the agreement of stakeholders on the acceptability of the risk involved. This Guideline is not intended to cover risk management concepts. These topics are covered in detail in some of the CSA and MIACC companion documents referred to in Annex D.