USA swimming is for swimmers of any age.  If you are unsure if your child is capable of competing in USA, please ask a coach for their opinion.  There are two seasonal sessions per calendar year.  The summer competition season begins in late May/early June and runs through July.  The winter season starts in late September/early October and runs through March.  There is additional cost to joining USA; a registration fee and each meet charges an fee for each event swam.