While current asthma cases are generally not allowed, there have been more leniency granted towards those who suffered from asthma in the past but are no longer afflicted with the condition. As of 2004, if the recruit has not had any asthma symptoms or been treated for asthma beyond his 13th birthday, he is generally considered not to have asthma by military recruitment standards. He will be allowed to join through an enlistment process that is the same as it is for someone who has never had asthma. If he has experienced asthma symptoms or been treated for asthma later than his 13th birthday, he may still be allowed to join but a medical waiver will be necessary. Whether the waiver is granted is based on factors such as the severity of his asthma, when the last treatment or symptoms occurred and his general prognosis with the condition.