World Natural Bodubuilding
Federation Japan
WNBF JAPAN Regulations
Understanding the Judging Criteria
Athletes may not appeal judging decisions.
All results are considered final and are to be respected as the official evaluation of the judging panel and used as feedback for future competitive improvement.
Code of Conduct
Athletes are expected to maintain the highest standards of sportsmanship and professionalism in their conduct, appearance, and behavior.
Any actions that undermine the integrity, credibility, or development of the sport are prohibited.
Compliance with Competition Rules
Athletes must comply with all rules and policies established for each competition and cooperate with event officials to ensure the smooth operation of the event.
Tanning and Body Oil
Tanning and coloring products are permitted.
As application standards may vary by event, competitors should review the specific competition guidelines for details.
Anti-Doping Policy
The use of prohibited substances is strictly prohibited.
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Polygraph examinations and urine testing may be conducted.
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Test results are determined based on the analysis conducted by a designated laboratory in the United States.
Penalties for violations may include:
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Suspension from competition
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Publication of the athlete’s name
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Invalidation of results
Eligibility for International Competition
For World Championship events, eligibility is generally awarded to top-placing athletes at qualifying competitions.
In addition, WNBF JAPAN registered athletes may compete in WNBF-affiliated events held in other countries (e.g., WNBF Taiwan), subject to the rules and entry requirements of each respective event.




