Scarborough, Ontario  

Recent Experience Rating (RER) Explained

It is important to match your recent diving experience (RER) with any SUCI Planned dive. This is for your safety.  All SUCI dives are assigned an experience rating (A, B or C).  This indicates the recommended RER rating required for each dive.

Recent diving Experience (RER) is declared each year by members on their annual membership application form. It can be updated at any time by completing the RER update form

As part of the annual membership application, SUCI members must complete this declaration if they plan to participate in SUCI dives. Each diver’s assessment of their experience during the previous 12 months will give a starting experience category of either A, B or C. 

This process is for your safety. Please be conservative.

Each SUCI dive will have a Recent Experience Rating (RER) (A, B or C) which is the minimum required for that dive.
This ensures that club members do not commit to dives that present any degree of personal discomfort or risk.
The Instructor or Divemaster leading each dive has the responsibility to verify the skill and readiness of each
diver as per normal diving practice and has the final word with respect to diver safety and who may participate in any given dive.

Guidelines for Answering Questions below:

Your starting “Recent Experience Category” will be determined by the least of A, B, or C for any question about your experience in the last 12 months (C being the most experienced in the last 12 months)
If you dive early in the season to gain experience to move your Recent Experience Category from A or B to C, then you will be able to book club dives that require a “Recent Experience Category” of C. (Subject to Divemaster approval) Update your RER rating here


Cold water necessitates that a diver wear at least a 7 mm wetsuit, boots, hood and gloves or a drysuit, to ensure thermal protection.

Recreational overhead environment refers to a situation such as shipwreck or cavern diving in which a direct ascent to the surface is not possible, but a diver remains in the “light zone” i.e. natural light and is clearly within easy reach of highly visible exit points. The combination of depth plus entry must not exceed 130 ft. For example, a dive that is 80 ft. plus 50 ft. into an overhead environment.

Limited recreational overhead refers to a situation such as shipwreck or cavern diving in which the combination of depth, plus an overhead entry that is within the light zone, does not exceed 60 ft. For example, a dive that is 40 ft. deep plus 20 ft. into an overhead environment, but still in the light zone.

Limited current describes a current that a diver can swim against briefly.