Climbing hooks or spurs are permitted under what condition?

• A. Are prohibited unless authorized by forest service or removing the tree
• B. Are always allowed
• C. Are allowed for pruning any tree
• D. Are prohibited for all work

Answer: (A)

Climbing hooks or spurs create wounds in the tree’s cambium, which can lead to decay, disease, and structural problems. Because of that risk, their use is tightly controlled and not allowed in general. They’re permitted only under specific authorization: when the Forest Service approves their use, or when the operation is removing the tree. In all other pruning or maintenance work on living trees, alternative climbing methods that avoid causing cambial injury are used.