British Association for Cardiovascular Prevention and Rehabilitation (BACPR): http://www.bacpr.com/pages/page_box_contents.asp?pageid=874&navcatid=137

For nurses specifically: http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2702.2000.00394.x/full

American Association of Cardiovascular Prevention and Rehabilitation: https://www.aacvpr.org/Portals/0/resources/professionals/Core_Competencies_for_Cardiac%202010.pdf