Students must hold NSS-CDS open-circuit Cave Diver certification, or equivalent and also meet the prerequisites for the CCR Cave Diver course.
Students must possess Advanced Open Water Diver and entry-level Nitrox Diver or equivalent certifications from a widely recognized diver training organization, or equivalent experience. This training may take place concurrently with the CDS Basics orientation or Apprentice Cave.
Students participating in any training program involving planned decompression must possess appropriate certification from a widely recognized diver training organization. This training must cover: Use of pure oxygen or oxygen-rich decompression mixtures and procedures for decompression diving. This training may take place concurrently with NSS-CDS Cave Diver training.
Additionally, instructors must screen and evaluate students to ensure they possess the necessary attitude, knowledge and skills before any further in-water training takes place. Instructors must refer students who cannot pass this screening process to opportunities where they can obtain remedial training. Only when students can pass the screening process may they continue their cavern/cave training. Instructors must be authorized to teach the NSS-CDS CCR Cave Diver course.