Analysis of information sources in references of the Wikipedia article "Boy Scouts of America" in English language version.
Children can be Scouts if they have completed the fifth grade and are at least 10 years old, OR have earned the Arrow of Light Award and are at least 10 years old, OR are age 11 but have not reached age 18. ... Venturers and Sea Scouts registered in a crew or ship prior to their 21st birthday may continue as members after their 21st birthday until the crew or ship recharters or until they reach their 22nd birthday, whichever comes first.
Children can be Scouts if they have completed the fifth grade and are at least 10 years old, OR have earned the Arrow of Light Award and are at least 10 years old, OR are age 11 but have not reached age 18. ... Venturers and Sea Scouts registered in a crew or ship prior to their 21st birthday may continue as members after their 21st birthday until the crew or ship recharters or until they reach their 22nd birthday, whichever comes first.