Suncor prepared this Report on Sustainability in accordance with the G3 Sustainability Guidelines of the GRI Application Level A+. The GRI's voluntary guidelines include both core requirements--requirements that companies such as Suncor must strive to meet to achieve accordance--and optional requirements.

Suncor's progress in meeting these requirements is marked in the GRI content index in the following tables along with links for finding more details.

For more information about the GRI, visit www.globalreporting.org.