NSA Slowpitch Adult & youth bat rules (2027)
The rule for 2027
Bats must carry the NSA stamp. Barrel 2 1/4" max. Length 34" max.
Source: playnsa.com · checked Oct 23, 2026
| Stamp | NSA |
|---|---|
| Max barrel | 2 1/4" |
| Max length | 34" |
| Drop limit | — |
| Ages | 10+ |
NSA 2012 logo, and the bat must come from an NSA-approved bat company.
What the stamps mean
- NSA 2012 logo, from an NSA-approved bat company: NSA requires the NSA 2012 logo, and the maker must be on NSA's Approved Bat Company list. A bat marked only USA or only USSSA is not NSA-legal. Official list.
What size slowpitch bat?
Nearly all slowpitch bats are 34". Weight is the real choice: 26–28 oz suits most hitters.
Shop bats for Adult & youth
These links open bats with the right stamp. Check the exact model against the official list before you buy. We earn a commission if you buy, at no cost to you.
Other Slowpitch softball divisions
- USA Softball (slowpitch) Adult & youth slowpitch (Ages 10+)
- USA Softball (slowpitch) Senior slowpitch (Ages 40+)
- USSSA Slowpitch Tournaments (Ages 14+)
- USSSA Slowpitch League play (Ages 14+)
- USSSA Slowpitch Senior (Ages 40+)
- Senior (Ages 40+)
- Senior Softball-USA SSUSA tournaments (Ages 40+)
- Church / city rec league Local leagues (Ages 14+)
This page summarizes the published rule. Your league or tournament can add its own, and its ruling is final. Confirm your bat isn't on a decertified or non-approved list before you buy. More bat questions.
Not sure what to buy?
The free Bat Finder gives you the length, the drop and the stamp your league requires in about 20 seconds.
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