Little League bat rules (2027)
Little League baseball bat rules by division, from Tee Ball and Minors through Majors, Intermediate 50/70, Junior and Senior League.
| Division | Season | Stamp | Barrel | Max length | Drop limit |
|---|---|---|---|---|---|
| Tee Ball Ages 4–7 | Current | Tee ball or USABat or Wood | 2 5/8" | 33" | — |
| Minors & Majors (incl. coach and machine pitch) Ages 7–12 | Current | USABat or Wood | 2 5/8" | 33" | — |
| Intermediate (50/70) Ages 11–13 | Current | USABat or BBCOR or Wood | 2 5/8" | 34" | — |
| Junior League Ages 12–14 | Current | USABat or BBCOR or Wood | 2 5/8" | 34" | — |
| Senior League Ages 13–16 | Current | BBCOR or Wood | 2 5/8" | 36" | -3 or heavier |
Notes by division
- Tee Ball: Bats with the tee ball mark must be 26" or shorter and can only be used with approved tee balls.
- Minors & Majors (incl. coach and machine pitch): BBCOR and USSSA (BPF 1.15) bats are not allowed. No new USABat is made longer than 32", so a 33" bat would be wood or an older model. Tee-ball-marked bats are allowed in coach/machine pitch only with approved tee balls. No change for 2027.
- Intermediate (50/70): No change for 2027. Little League hasn't said yet how the USA BBCOR mark will be phased in.
- Junior League: No change for 2027.
- Senior League: USABat bats are not allowed in Senior League. No change for 2027.
Stamps used in Little League
- USA Baseball tee ball mark ("Only for use with approved tee balls"): Tee ball bats carry the USA Baseball mark plus "Only for use with approved tee balls". They're legal only with approved low-compression tee balls, never with a regular pitched baseball. Official list.
- USA Baseball (USABat) mark: USA Baseball's youth standard, which makes bats perform close to wood. Barrel up to 2 5/8", no drop limit, and no new USABat is made longer than 32". Required in Little League, Cal Ripken, PONY, Diamond Youth (Dixie), AABC and most rec leagues. Official list.
- one-piece solid wood: One-piece solid wood is legal almost everywhere without a stamp. Multi-piece, laminated, bamboo and composite-wood bats usually do need a certification mark.
- BBCOR .50 mark: The high school and college standard: -3 drop, barrel up to 2 5/8", 36" max. BBCOR bats made before USA BBCOR stay legal in high school indefinitely, but the NCAA requires the new USA BBCOR mark from Jan 1, 2029. Official list.
Sources
- https://www.littleleague.org/playing-rules-/bat-rules (checked Oct 23, 2026)
This page summarizes published rules. 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. Questions about a specific model? Check the official list linked above. 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.
Open the Bat Finder