| CODE | CLASS | Previous code (version 2.1) |
|---|---|---|
| A | <20 cm | 0 |
| B | 20-75 cm | 50 |
| C | >75-150 cm | 100 |
| D | >150 cm | 200 |
| # | Non-applicable (e.g. rock, ice) | # |
effective Version 2.2 Source: updated from Shields et al. by Peter Schut and David Kroetsch
Contact: SLC
coordinator