Comments and Reply

Many industry stakeholders and governments expressed support for alignment of requirements for level and timing in Canada's regulations with those of the U.S.

Reply: The proposed regulations align with the U.S. EPA requirements for both level and timing.

Numerous parties commented on the regulatory limits and implementation date. Many urged earlier action and a limit below 15 ppm. It is noteworthy that no one suggested a limit higher than 15 ppm nor timing on limits on production and imports later than 2006.

Reply: As set out in the Minister's Notice of Intent on Cleaner Vehicles, Engines and Fuels, the proposed regulations set a limit of 15 ppm coming into effect in mid-2006. The implementation date for sales in northern regions is September 1, 2007, reflecting fuel distribution and logistical difficulties in northern Canada.

Comments received from stakeholders indicated that they universally preferred a simple, one-step implementation of 15 ppm sulphur in on-road diesel starting in 2006, without the complexities of the U.S. EPA-style provisions that would allow a small part of the on-road diesel pool to exceed the 15 ppm limit for a short period of time.

Reply: The proposed regulations have a one-step implementation of 15 ppm sulphur in on-road diesel fuel starting in mid-2006

Reply: The proposed regulations require a one-step implementation of 15 ppm on-road diesel fuel, and therefore there will only be one on-road diesel fuel in the marketplace.

Many parties commented on the possibility of including flexibility provisions in the regulations, particularly to address the possibility of unforeseen circumstances that could delay the introduction of low sulphur diesel fuel.

Given the initial comments by refiners seeking some form of flexibility in the regulations, Environment Canada sought clarification from CPPI on the circumstances under which industry considered that flexibility might be necessary. CPPI's response stated that

"The ULSD flexibility objective can be adequately served at this point in time by an appropriate statement in the RIAS [Regulatory Impact Assessment Statement]"… The RIAS should recognize that Canadian refiners are competing both internationally and domestically for specialized engineering and construction resources. These implementation issues are expected to be manageable, but are difficult to predict with absolute certainty several years in advance."

Reply: The proposed regulations adopt a simple, straightforward approach, requiring 15 ppm sulphur in on-road diesel fuel across Canada starting in 2006. The regulations do not include U.S. EPA-style flexibility or "safety valve" provisions that would allow a small part of the on-road diesel pool to exceed the 15 ppm limit for a short period of time.

The RIAS accompanying the regulations includes the following statement:

"One consequence of aligning with the U.S. is that Canadian refiners will be competing for specialized engineering and construction resources with the U.S. refiners. The Canadian refiners have indicated that they expect this implementation issue to be manageable, but that it is difficult to predict with absolute certainty several years in advance. Environment Canada will monitor this situation over the years prior to 2006 to see if any serious widespread difficulties arise."

Reply: The presence of higher sulphur products and crude in the distribution system creates the potential for contamination of 15 ppm diesel fuel. In developing its regulations, the EPA examined how pipelines would have to be managed to minimize contamination of low-sulphur diesel fuel. The EPA found that more careful pipeline management, including larger product interface and increased volumes of re-blending contaminated batches would occur, resulting in additional pipeline and distribution system costs. Canada will face these same types of issues with the introduction of 15 ppm diesel fuel. This issue and the estimated additional costs were discussed at length in the discussion document distributed in May 2001.

The EPA has determined that a level of 15 ppm sulphur in diesel fuel will be necessary for new on-road vehicle emission standards to be met. Therefore, the proposed regulations stipulate a sulphur limit of 15 ppm for sales of on-road diesel fuel.

Stakeholders expressed concern regarding potential misfuelling and possible implications on warranty of after-treatment devices. Most of these comments related to the situation of two grades of on-road diesel fuel being allowed during a transition period.

Reply: Potential for misfuelling of diesel on-road vehicles exists presently, as diesel fuel for off-road use can have a sulphur level higher than the limit for on-road diesel fuel. This situation will continue to exist when sulphur in on-road diesel fuel is reduced to 15 ppm. With the more stringent 15 ppm limit, there will be a greater risk of contamination from higher sulphur products resulting in the regulated limit being exceeded. As discussed above, this will require more careful pipeline and storage tank management.

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2022-09-15