The ERDI Emergency Response Diver II Technician course is the advanced level of ERD II training, certifying you as a fully proficient working diver on complex public safety operations. You will refine advanced search, recovery, tending, and communications skills and take on a leadership role in coordinated team dives.

It is intended for experienced public safety divers who have completed the Operations level and want to reach the highest ERD II proficiency.

Why train with Sink or Swim Scuba

You’ll train with an instructor who spent years as a working public safety diver and still supports local dive teams today. As an authorized Interspiro distributor, we keep rental and demo equipment on hand and offer on-site demo dives, so your team can try gear before investing — and we can assist with your dive operations as you build capability. ERDI training runs across three levels — Awareness, Operations, and Technician — and we train public safety divers locally, nationally, and internationally, including teams as far away as Spain.

Explore the pathway: Training Pathway · Public Safety Diving hub · ERDI I Public Safety Diver