There are no new rule changes specifically to Section D: Eventing happening in 2022, but EC has updated Section A: General Regulations to reflect the new requirements at shows for licensed and registered coaches.

–Coach Status is required in 2022 to engage in coaching activities at EC sanctioned shows and events.
-Riders must indicate the name of their coach on their entry form or if they are self coached.
-Coach name and EC number must be on the entry form.

The important bits are highlighted in this summary: https://albertahorsetrials.com/wordpress/wp-content/uploads/2022/01/2022-EC-Section-A-Amendment-Summary.pdf

Full 2022 EC rules can be viewed here: https://www.equestrian.ca/programs-services/rules

And just a reminder of the Requirement for all Sport License holders (18 yrs+) to complete EC’s Safe Sport Training before March 31, 2022 (or if renewing after March 31, within 30 days of sport license purchase)

Another link to the 2022 Rules including highlights of changes made in each section: https://sirc.ca/news/2022-equestrian-canada-rules-now-available/