Slowpitch bat stamps: USA, USSSA 240 vs 220, NSA and senior
Which slowpitch stamp your league or tournament needs, and why a 220 bat can be legal in league but not in tournaments. Last checked Oct 23, 2026.
| League | Division | Stamps allowed | Drop limit | Max length |
|---|---|---|---|---|
| USA Softball (slowpitch) | Adult & youth slowpitch | USA Softball | — | 34" |
| USA Softball (slowpitch) | Senior slowpitch | Senior (SSUSA), USA Softball | — | 34" |
| USSSA Slowpitch | Tournaments | USSSA 240, Wood | — | 34" |
| USSSA Slowpitch | League play | USSSA 240 | — | 34" |
| USSSA Slowpitch | Senior | Senior (SSUSA) | — | — |
| NSA Slowpitch | Adult & youth | NSA | — | 34" |
| NSA Slowpitch | Senior | Senior (SSUSA), NSA | — | 34" |
| Senior Softball-USA | SSUSA tournaments | Senior (SSUSA) | — | — |
| Church / city rec league ⚠️ varies | Local leagues | USA Softball | — | — |
The ones that catch people
- USSSA 220 vs 240: the 2014 mark ("220") has been banned from USSSA-sanctioned tournaments since Jan 1, 2023, but it's still legal in USSSA league play. Tournaments need the 2020 mark ("240").
- NSA: the bat needs the NSA 2012 logo and has to come from an NSA-approved company.
- Senior bats: they're legal only in senior play. USA Softball allows them in senior championship play only, and many rec leagues ban them.
- Rec and church leagues: no national rule. Most follow USA Softball, but check your league.
Size
Nearly all slowpitch bats are 34" with a 2 1/4" barrel. Choose by weight: most hitters do well around 26–28 oz, and stronger hitters go heavier.
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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