Whether you are a beginning umpire or an experienced umpire looking to improve on your umpiring skills, these training DVD's are just for you. The Amateur Softball Association of America (ASA), The National Governing Body of Softball, is proud to introduce these ASA Umpire Mechanics DVD training materials. Learn the neccassary skills without attending an umpire camp or clinic through these innovative, quality training materials offered by the ASA? Umpire Mechanics on an animated DVD. Aimed at all levels of ability.