In legislative procedure, a rider is an additional provision added to a bill or other measure under consideration by a legislature, which may or may not have much, if any, connection with the subject matter of the bill.
Some scholars identify riders as a specific form of logrolling, or as implicit logrolling. Others distinguish riders from logrolling. Adding riders to legislation is not permitted in legislatures bound by a single-subject rule. Since the 1980s, however, omnibus bills have become more common: these bills contain provisions, sometime important provisions, on an array of policy areas, and "are powerful for focusing attention away from controversial items to other main items" that either have broad support or are viewed as necessary, "must-pass" measures (such as appropriation bills). Another rider has been the Hyde Amendment which since 1976 has been attached to Appropriation Bills to prevent Medicaid paying for most abortions. Another was the Boland Amendment in 1982 and 1983 to restrict financing of the Contras in Nicaragua.
A recent notable example of a rider was in the Health Care and Education Reconciliation Act of 2010. An amended version of the Patient Protection and Affordable Care Act in 2010 that was signed into law by Barack Obama only one week before, the amended bill included a rider for the Student Aid and Fiscal Responsibility Act, whose student loan reform was completely unrelated to the broader bill's primary focus on health care reform.
State legislation
Riders exist at the state level as well. For just one example, a 2005 bill in West Virginia that was primarily focused on limiting the number of members that cities can appoint to boards of parks and recreation unexpectedly included a rider that made the English language the official language of the state of West Virginia. Most members of the West Virginia Legislature did not realize that the rider had been entered into the bill until it had already passed both state houses. Then-West Virginia governor Joe Manchin, although a personal supporter of the English-only movement, promptly vetoed the bill due to a provision in the Constitution of West Virginia that limits bills to one topic, which also makes riders de facto unconstitutional in West Virginia. To counteract riders, 43 of the 50 U.S. states have provisions in their state constitutions allowing the use of line item vetoes so that the executive can veto single objectionable items within a bill, without affecting the main purpose or effectiveness of the bill.
Europe
France
The Constitutional Council of France has taken an increasingly hard view against riders, which it considers unconstitutional and contrary to the rules of procedure of the parliamentary assemblies. In 1985 the Council started striking down amendment to laws because they were unrelated to the subject of the law. Two special categories of riders merit mention: the "budgetary riders", attached to budget bills, clauses that have no link to the budget or to the social security budgets, respectively.
Greece
Greece's constitutional provisions regarding parliamentary procedure forbid the parliamentary discussion of bills containing unrelated topics. Specifically, article 74, paragraph 5 of the Greek Constitution stipulates that a) a bill that contains provisions unrelated to its main subject is not introduced for discussion, and b) additions or amendments unrelated to the bill's main subject are not introduced for discussion.
Hungary
In 2005, the Constitutional Court of Hungary struck down the yearly national budget law in its entirety, because almost half of the paragraphs were not related to state fiscals at all, but modified 44 other existing pieces of legislation, which concerned health regulations, public education and foreign relations. This judicial ruling restricted the government's future options in bypassing due parliamentary debate and imposing certain reforms unilaterally.
United Kingdom
In some legislative systems, such as the British Parliament, riders are prevented by the existence of the long title of a bill that describes the full purpose of the bill. Any part of the bill that falls outside the scope of the long title would not be permitted. However, legislators often bypass this limitation by naming a bill vaguely, such as by appending "and for connected purposes" to the name.
The Czech Republic
Both Chamber of Deputies of The Czech Republic and Senate of The Czech Republic should respect the principles of transparent governance, and should be scrutinised by the opposition and the general public. Their final decision should follow a long and public debate on the subject of regulation. In The Czech Republic, however, this parliamentary principle is often violated by complex amendments to bills and so-called wild riders, amendments that are not substantively related to the bill in question.
In The Czech Republic, acceptance of legislative additions is contrary to the Constitution of the Czech Republic and the legislative procedure established by the Law of the Czech Republic. According to the conclusion of the Constitutional Court of the Czech Republic in its ruling Pl.ÚS 21/01, the legislative practice, when a single law amends several laws that are not directly related to each other in terms of content, does not correspond with the purpose and principles of the legislative process. Such a procedure would create an unclear legal situation which contradicts the fundamental principles of the rule of law. The basic principles of the rule of law are the principles of the predictability of the law, its comprehensibility, clarity and internal consistency, i.e. the coherence and unity of the legal order.
Up to date, there is no legislative regulation to prevent the practice of legislative riders. However, there are safeguards that should prevent the practice of wild riders. One of these safeguards is The Constitutional Court of the Czech Republic itself, whose role under Section 68(2) of The Constitutional Court Act of the Czech Republic is to determine whether a bill has been adopted and passed in a constitutionally-conforming manner. The Constitutional Court of the Czech Republic has taken hard view against wild riders. According to the conclusion of The Constitutional Court of the Czech Republic in its rulings Pl.ÚS 21/01 and Pl.ÚS 77/06, wild riders are unconstitutional and contrary to the law of legislative procedure and its principles.
PL. ÚS 21/01: Budget Case
What occurred in this particular budget case is that several statutes were simultaneously amended by a single statute, and among these amended statutes was an act on the State Budget. The Constitutional Court of the Czech Republic stated that the practice by which several diverse statutes are simultaneously amended by the adoption of a single statute is a relatively common one in legislative practice, and that this practice is in principle constitutionally conforming, but only in the case that the amended statutes bear mutual substantive connection to each other. However, in this case, the amended laws were not bearing any direct substantive connection to each other and were amended by a single act. Such practice, according to The Constitutional Court of the Czech Republic, must be designated as an undesirable phenomenon, and one not corresponding to the purpose and principles of the legislative process. The Constitutional Court of the Czech Republic further stated that the Rules of Procedure of the Chamber of Deputies regulate the discussion of the act on the State Budget, according to which The Act on the State Budget may not provide for changes, amendments or cancellations or other acts of law.<nowiki/>'