There is no proven safe or effective dose for niacin in children. For type 1 diabetes mellitus prevention, 200-3,000 milligrams of niacinamide has been taken by mouth daily for up to one year; 20-40 milligrams per kilogram has been taken by mouth daily for up to five years, and lacked evidence of benefit.
Become A Referee. General Information. You become a referee by attending and successfully completing a referee training course. As of July, 2013 U.S. Soccer Federation (USSF) authorized two entry-level referee certifications: Recreational Referee Grade 9 and Referee Grade 8.However, Referee Grade 8 entry level is the most popular.nformation For New Referees. Once you successfully complete a referee course and register with the USSF, you will receive your badge and will need to get appropriate referee gear, including a soccer referee uniform, soccer referee flags, referee cards, whistle, watch and shoes.
How to Become an NFL Referee. Referees for the National Football League are an elite selection of refs. Approximately 17 percent of referees qualify for this level, usually while working other part or full-time jobs. NFL officials make between $25,000 and $70,000. You can learn how to become an NFL referee by completing the guidelines for training and experience listed below.