These are monthly or annual income amounts that are used to help determine eligibility for a number of federal food assistance and other programs. They are derived from the income poverty thresholds used by the Census Bureau in counting the number of poor persons, differ by household size, are adjusted upward for Alaska and Hawaii, are published by the Department of Health and Human Services early each spring, and are updated annually for overall inflation. For example, 130% of the income poverty guidelines is the limit for food stamp and free school lunch income eligibility. Sometimes referred to as the Office of Management and Budget (OMB) poverty guidelines.