Where can I park if I have a Blue Badge? Blue Badge concessions only apply to on-street parking and may include free use of parking meters and pay-and-display bays – unless a traffic order specifying a time limit for holders of Blue Badges is in force. Badge holders may be exempt from limits on parking times imposed on other users. Badge holders may usually park on single or double yellow lines for up to 3 hours. Badge holders are advised to check local signs for information.