All 50 states have laws on the books dealing with concussions. In most states it pertains only to scholastic play. However, in some states it applies to recreational ball also. So if you have a travel team and play out of state, you may be required to provide a concussion training certificate. While it might not be an issue for you at this time, state laws are always changing. I wouldn’t want you to get caught off guard. NFHS offers a course, as does the CDC.
Right now Maine’s law reads, "a student will not be allowed to return to a sport or extracurricular activity until he or she has been cleared by a licensed health care provider trained in concussion management."
Teams traveling outside the state for softball should either contact the States JO offices or the tournament host to find out more information on if they require concussion certificates.