
The process of amending the US Constitution is outlined in Article V of the Constitution, which states that amendments may be proposed by Congress with a two-thirds majority vote in both the House of Representatives and the Senate, or by a constitutional convention called for by two-thirds of state legislatures. Once an amendment is proposed, it must be ratified by three-fourths of the state legislatures or by ratifying conventions in three-fourths of the states. The process of amending the Constitution is challenging and time-consuming, and the Constitution has only been amended 27 times since it was drafted in 1787. Article V does not specify a time limit for the ratification of amendments, and there is debate over whether it is the only way to amend the Constitution.
| Characteristics | Values |
|---|---|
| Authority to amend the Constitution | Article V of the Constitution |
| Amendment proposal | Congress with a two-thirds majority vote in both the House of Representatives and the Senate, or a constitutional convention called for by two-thirds of state legislatures |
| Ratification | Three-fourths of the states (38 of 50 states) through a vote of either the state legislature or a state convention |
| Certification | Archivist of the United States |
| Publication | Federal Register |
| Time limit | No mention in Article V, but most amendments since 1917 have included a deadline |
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What You'll Learn
- Amendments may be proposed by Congress with a two-thirds majority vote
- Amendments may be proposed by a convention called by two-thirds of state legislatures
- Amendments must be ratified by three-fourths of the states
- Ratification can be by state legislatures or state conventions
- Article V does not mention a time limit for ratification

Amendments may be proposed by Congress with a two-thirds majority vote
The process of amending the Constitution of the United States is outlined in Article V of the Constitution. Amendments to the Constitution may be proposed by Congress with a two-thirds majority vote in both the House of Representatives and the Senate. This is a challenging and time-consuming process, as it requires the support of a supermajority in both chambers of Congress.
To initiate the amendment process, Congress must pass a proposed amendment with a two-thirds majority vote in both the Senate and the House of Representatives. This step demonstrates a strong consensus within Congress on the need for the proposed change to the Constitution. It is important to note that Congress has the authority to propose amendments, but it does not have the power to enact them unilaterally.
Once an amendment is proposed by Congress, it is then sent to the states for ratification. The Constitution provides two methods for states to ratify amendments, and Congress determines which method the states must follow for each proposed amendment. The first method is ratification by the legislatures of three-fourths of the states, which is 38 out of 50 states. This method involves the state legislatures directly voting on the proposed amendment.
The second method is ratification by ratifying conventions conducted in three-fourths of the states. In this method, each state convenes a convention specifically for the purpose of considering the proposed amendment. This process has only been used once in American history, during the ratification of the Twenty-First Amendment in 1933.
It is important to note that the amendment process does not include specific deadlines for ratification. However, most amendments proposed since 1917 have included their own deadlines for ratification. Once an amendment is ratified by one of the methods determined by Congress, it becomes a valid part of the Constitution.
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Amendments may be proposed by a convention called by two-thirds of state legislatures
The process of amending the Constitution of the United States is outlined in Article V of the Constitution. Amendments to the Constitution can be proposed in two ways: by Congress or by a convention called by two-thirds of state legislatures. This response will focus on the latter method, where amendments may be proposed by a convention called by two-thirds of state legislatures.
The process begins when two-thirds of state legislatures call for a constitutional convention to propose amendments. This step involves the state legislatures applying to Congress to call for a convention. Once the convention is convened, it proposes amendments to the Constitution.
For an amendment proposed by the convention to become part of the Constitution, it must be ratified. The ratification process can occur in two ways, as determined by Congress: through the legislatures of three-fourths of the states or by ratifying conventions in three-fourths of the states. This means that at least 38 out of 50 states must approve the amendment for it to become part of the Constitution.
The choice of ratification method rests with Congress, and this decision is final and cannot be challenged. It is worth noting that the convention method of proposing amendments has never been used in the history of the United States. Despite this, it remains a valid option for proposing amendments, emphasizing the importance of state legislatures in the amendment process.
In conclusion, while the primary method of proposing amendments is through Congress, the Constitution also provides for a convention called by two-thirds of state legislatures to propose amendments. This process underscores the role of the states in shaping the Constitution and ensures that amendments reflect the will of a significant majority of the country.
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Amendments must be ratified by three-fourths of the states
The process of amending the Constitution of the United States is outlined in Article V of the Constitution. The process begins with a proposal for an amendment, which can be made by Congress with a two-thirds majority vote in both the House of Representatives and the Senate, or by a constitutional convention called for by two-thirds of state legislatures.
Once an amendment has been proposed, it must be ratified to become part of the Constitution. This is achieved when it is ratified by three-fourths of the states, i.e., 38 out of 50 states. This can be done through a vote of the state legislatures or a state convention, with Congress determining the mode of ratification.
The Office of the Federal Register (OFR) plays a crucial role in the ratification process. They examine the ratification documents for legal sufficiency and authenticity of signatures. Once the OFR verifies that the required number of authenticated ratification documents has been received, a formal proclamation is drafted for the Archivist of the United States to certify the amendment as valid.
The Archivist of the United States, who heads the National Archives and Records Administration (NARA), is responsible for administering the ratification process. The Archivist follows procedures and customs established by the Secretary of State and the Administrator of General Services before NARA assumed responsibility in 1985.
The process of amending the Constitution is deliberately difficult and time-consuming. Since the Constitution was drafted in 1787, it has only been amended 27 times, including the first 10 amendments, known as the Bill of Rights, which were adopted and ratified simultaneously.
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Ratification can be by state legislatures or state conventions
The process of amending the Constitution of the United States is outlined in Article V of the Constitution. The process begins with a proposal for an amendment, which must be passed by a two-thirds majority vote in both the House of Representatives and the Senate.
Once an amendment has been proposed, it is sent to the states for ratification. At this point, Congress determines whether the amendment will be ratified by state legislatures or state conventions. To be ratified, an amendment must be approved by three-fourths of the states, or 38 out of 50 states.
State legislatures are the most common method of ratification. This involves the state's legislative body voting on the proposed amendment. If an amendment is ratified by the legislatures of three-fourths of the states, it becomes part of the Constitution.
Alternatively, Congress may propose that an amendment be ratified by state conventions. In this case, three-fourths of the states must hold conventions to vote on the amendment. This method has only been used once in American history, for the ratification of the Twenty-First Amendment in 1933.
It is important to note that the amendment process is deliberately difficult and time-consuming. Of the 33 amendments sent to the states for ratification, only 27 have been ratified and become part of the Constitution.
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Article V does not mention a time limit for ratification
Article V of the U.S. Constitution gives Congress the power to propose an amendment and determine the mode of ratification. However, it does not specify a time limit for the ratification process. This absence of a time constraint in Article V has been a subject of legal debate, with the Department of Justice's Office of Legal Counsel (OLC) asserting that amendments remain pending before the states in the absence of a congressionally proposed deadline. This stance is based on the belief that introducing implicit time limits would create uncertainty and hinder the functionality of the Article V process.
The OLC advised in 2020 that Congress lacks the authority to extend ratification deadlines or revive expired amendments without restarting the Article V process. However, in the 1921 Supreme Court case Dillon v. Gloss, it was determined that Congress has the implicit authority to fix a definite time limit for ratification. This decision was based on the understanding that Congress's power to determine the mode of ratification implies the ability to specify a deadline.
The first amendment with a time limit was the 18th Amendment (Prohibition) in 1917, which included a seven-year deadline chosen by Congress. The 19th Amendment (Woman Suffrage) and the Child Labor Amendment, proposed in 1919 and 1924 respectively, had no time constraints. Beginning with the 20th Amendment, Congress has consistently attached time limits to proposed amendments.
The Madison Amendment, with its 203-year ratification period, has also influenced the interpretation of "sufficiently contemporaneous" ratification timelines. Despite the varying perspectives on time limits, it is clear that Article V does not explicitly address this aspect of the amendment process, leaving room for legal interpretation and precedent to shape the understanding of ratification deadlines.
In conclusion, while Article V of the U.S. Constitution empowers Congress to propose amendments and determine their ratification mode, it notably omits any mention of time limits for the ratification process. This omission has led to legal debates and the establishment of precedents that guide the understanding of ratification timelines. The absence of a specified time constraint in Article V highlights the dynamic nature of constitutional interpretation and the ongoing evolution of amendment procedures.
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Frequently asked questions
The process to amend the Constitution is described in Article V of the Constitution. Amendments may be proposed by Congress with a two-thirds majority vote in both the House of Representatives and the Senate, or by a convention called for by two-thirds of state legislatures. To become part of the Constitution, an amendment must be ratified by three-fourths of state legislatures or ratifying conventions in three-fourths of states.
Congress proposes amendments to the Constitution and sends them to the states for ratification. Congress can also set a ratification deadline, and it has the power to alter this deadline. Congress has sent 33 amendments to the states for ratification, 27 of which have been ratified and are part of the Constitution.
The Archivist of the United States is responsible for administering the ratification process. The Archivist receives certified copies of state ratification actions and issues a certificate proclaiming that an amendment has become part of the Constitution when the required number of state ratifications is reached.
The amendment process can be very time-consuming. There is no set time limit for ratification, so an amendment can be pending indefinitely until it is ratified by the required number of states. The longest an amendment has taken to be ratified is over 200 years for the 27th Amendment.
Yes, states can reject an amendment or rescind their prior ratification. However, the Archivist does not make any substantive determinations as to the validity of state ratification actions. Congress determines whether an amendment has been ratified within a reasonable period of time or has "lost its vitality through lapse of time".

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