Enbridge Inc. must put in place all of its of voluntary spill and tanker safety plan, fund heavy oil spill research and hold nearly $1-billion in liability coverage if it builds its controversial Northern Gateway project, a federal panel has determined.

On Friday morning, the National Energy Board released a lengthy list of potential conditions for Gateway. The list does not constitute approval of the project – that decision is not expected until later this year. But the board said Friday "the publication of potential conditions is a standard step in the hearing process that is mandated by the courts."

The 199 conditions, which stretch over 45 pages, set out the terms under which Enbridge will have to abide if it gains approval for Northern Gateway, which proposes to carry oil sands crude to the British Columbia coast for export.

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They include requirements that the company file reams of paperwork on First Nations employment, have hefty financial resources at the ready in case of a large spill, fund a research program on heavy oil spills and begin construction by Dec. 31, 2016.

They make clear the NEB's interest in gathering very specific data on the safety of the pipeline, down to advance reports into the pipeline steel that will be used and the techniques that will be employed to weld it.

In an interview, Enbridge spokesman Todd Nogier said the early release of the conditions will "provide ample and appropriate opportunity for all regulatory participants to provide their comments before the final argument hearings in June. This is a demonstration of just how inclusive this process is to all participants."

Mr. Nogier noted that it is "pretty standard" for pipeline to face lengthy conditions, but that Enbridge intends to provides its comments on them "directly to the joint review panel when our review is complete."

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By comparison, the NEB attached 264 conditions to its support of the Mackenzie Valley natural gas pipeline – but just 22 to its decision on the Canadian portion of TransCanada Corp.'s Keystone XL pipeline. By the Keystone XL measure, the proposed Enbridge conditions are nearly an order of magnitude more numerous, and far more stringent.

For example, the NEB asked TransCanada to simply file "a list of pipe that was received from the pipe supplier" before it began pumping oil. With Gateway, the NEB wants Enbridge to provide numerous bits of documentation, including a full engineering report on the steel it intends to use – and that report must be filed three months before the pipe is manufactured.

Critics, however, are skeptical, pointing out that the potential conditions make no reference to oil sands expansion, a key concern among environmental groups. In addition, Cabinet must approve the conditions – and has shown a willingness in the past to excise some.

"The NEB can suggest all the conditions it wants, but it is up to the minister to make them part of the licence," said Keith Stewart, a campaign co-ordinator with Greenpeace Canada. "What we have seen in the past is that the NEB makes many recommendations, which are then abandoned or watered down when Cabinet gives its approval," he added, pointing to the Mackenzie process.

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Under the draft conditions, Enbridge would be required to: