The Budopas-sport is the official membership document of the World Ju-Jitsu Corporation. All members own it, as it contains all personal information such as annual affiliations, exams, seminars, levels, responsibilities and grades achieved.

It must be guarded as is a complete register of one's personal martial career. Inside of it, apart from several pages and sections, there are two appropriate spaces for signing as acceptance of the WJJC general rules.

Any Budopass-sport is recorded with a registration number referring to its owner, this is stored in the national database and transmitted every year to the WJJC International, which keeps the international register constantly updated.