(1)  A pipeline licensee for a pipeline for which a pipeline management plan is in force must submit to the Minister a proposed revision of the plan as soon as practicable after any of the circumstances mentioned in subregulation (3) is satisfied.

(2)  However, if a circumstance mentioned in subregulation (3) is satisfied because the licensee proposes to modify or decommission the pipeline, the licensee must not submit the proposed revision before the licensee and Minister have agreed on the scope of the validation of the proposal to revise the plan.

(3)  A need to revise a plan arises if –

(a) there are reasonable grounds for believing that the technical knowledge relied on to formulate the plan is outdated and, accordingly, the plan no longer adequately provides for –

(i) the matters mentioned in regulations 23 , 24 , 25 , 26 and 28 for the stages connected with the life of the pipeline mentioned in regulation 19 for which the plan is in force; or

(ii) the matters mentioned in regulation 27 ; or

(b) developments in systems for identifying and evaluating risks of significant pipeline accident events, or risks to the integrity of the pipeline, make it appropriate to revise the plan; or

(c) there are reasonable grounds for believing that a series of proposed modifications to the pipeline would result in a significant cumulative change in the overall level of risk –

(i) of significant pipeline accident events; or

(ii) to the integrity of the pipeline; or

(d) there are reasonable grounds for believing that a proposed modification to the pipeline would –

(i) significantly influence the level of a particular risk of a significant pipeline accident event or a risk to the integrity of the pipeline; or

(ii) significantly change the ranking of factors contributing to those risks; or

(e) the licensee proposes to significantly change the pipeline management system mentioned in regulation 25 for identifying, evaluating and managing risks –

(i) of significant pipeline accident events; or

(ii) to the integrity of the pipeline; or

(f) the compositions of petroleum conveyed in the pipeline are different from the compositions contemplated in the plan; or

(g) the licensee proposes to modify or decommission the pipeline and that proposal is not satisfactorily addressed in the plan; or

(h) developments in environmental conditions that affect design conditions make it appropriate to revise the plan.