Official Little League Rules
Each year, Little League provides its constituent leagues with current Little League rules, regulations, and policies that outline and define the operation of the program. It is important for all Little League volunteers and parents to be familiar with the most up-to-date version of Little League’s Official Regulations, Playing Rules, and Operating Policies. These rulebooks provide the structure and support for local leagues and districts to provide a meaningful Little League experience for all children in their community. You can learn more by visiting the official Little League Rules, Regulations, and Policies.

Interlock Definition:
An interlock involves teams from different Little League leagues participating in games together, creating a broader competition pool. These interlock games are generally governed by the official Little League baseball and softball rules. While the official rules are the foundation, interlocks can establish additional rules to clarify or enhance the official rules, but they cannot replace them.

Interlock Rules for Baseball Single A, AA, AAA and Majors
These rules are applicable for the divisions shown for the interlock between District 10 Chinook, Auburn, Bonney Lake/Sumner, and Kent leagues and applicable only to Fall 2025.

• Registration Guidelines
• Tee Ball
• Single A Baseball
• AA Baseball
• AAA Baseball
• Majors Baseball

Interlock Rules for Softball Minors B, Minors A, Majors, and Juniors
These rules are applicable for the divisions shown for interlock for all District 10 leagues participating in interlock and applicable only to Fall 2025.

• Registration Guidelines
• Softball Minors B
• Softball Minors A
• Majors
• Juniors

Bylaw Rules for Tee Ball and Single A
These rules are applicable for the divisions shown that do not interlock and applicable only to Spring 2025. These games are governed by the official Little League baseball or softball rules and establish additional rules to clarify or enhance the official rules.

• Tee Ball
• Single A Baseball

Highlighted Little League Rules
Little League games are governed by the official Little League baseball or softball rules with additional District 10 rules to clarify or enhance the official rules. The following are highlighted rules for awareness.

• Little League Rule 4.10 Game-Ending Rule Summary