Yes, typically there is a minimum age requirement for check-in at Howard Johnson properties. Generally, guests must be at least eighteen years of age to check in. Some locations may have different policies, possibly allowing check-in for guests who are at least twenty-one years old. It is also worth noting that a valid identification and a credit card are usually required at the time of check-in. Because policies can vary by location and there can be exceptions, it is advisable for travelers to check the specific requirements of the Howard Johnson property where they plan to stay. The current website may offer additional details or help clarify any questions regarding age requirements for check-in at particular locations.