If a ceiling is to be imposed for a long period of time, a government may need to ration the good to ensure availability for the greatest number of consumers. One way the government may ration the good is to issue ticket to consumers. A government will only allow as much of good to be out in the marketplace as there are available tickets. To obtain the good, the consumer must present the ticket and the money to the vendor when making the purchase. This is generally considered a fair way to minimize the impact of a shortage caused by a ceiling, but is generally reserved for times of war or severe economic distress.