Most forms of local D.C. law are transmitted to Congress for a specified review or “layover” period. The length of the layover period differs based on the type of law the District has enacted (60 days for criminal legislation and 30 days for other acts). The layover period excludes Saturdays, Sundays, federal holidays, and days on which neither the House nor the Senate is in session because of an adjournment sine die or pursuant to an adjournment resolution. In practice, the start and end date of the review period is subject to the interpretation of the House or Senate Parliamentarian. Under the Home Rule Act, any Member of the House or Senate may introduce a qualifying joint resolution disapproving a D.C. law any time after the law has been submitted to Congress and before the expiration of the layover periods described above.