The compulsory documentation is the one requested by law, that appears in BOE 177 (June 26, 2.020)
1.- Certification as a diver (minimum Open Water or 1 *) issued by an approved agency
2.- Diving accident insurance and civil liability
3.- Responsible declaration of medical fitness. (If a pre-existing condition is revealed, a medical certificate of fitness to dive must be provided)
Every diver must show these documents in our office before diving.