
The United States Constitution has been amended 27 times since it was first drafted in 1787, with the first 10 amendments being adopted in 1791 as the Bill of Rights. The process of amending the Constitution is outlined in Article V of the Constitution and involves two methods. The first method, which has been used for all 33 amendments submitted to the states for ratification, involves a two-thirds majority vote in both the House of Representatives and the Senate, followed by ratification by three-quarters of the state legislatures. The second method involves a constitutional convention called for by two-thirds of the state legislatures, which has never been used. The President does not have a constitutional role in the amendment process, and once an amendment is ratified by the required number of states, it becomes an operative part of the Constitution.
| Characteristics | Values |
|---|---|
| Authority to amend the Constitution | Article V of the Constitution |
| Who can propose an amendment | Congress with a two-thirds majority vote in both the House of Representatives and the Senate |
| A constitutional convention called for by two-thirds of the State legislatures | |
| Amendment proposal format | Joint resolution |
| President's role in the amendment process | No constitutional role |
| Amendment ratification | Ratified by three-fourths of the States (38 of 50 States) |
| Number of amendments to the Constitution | 27 |
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What You'll Learn

Amendments proposed by Congress
The authority to amend the Constitution of the United States is derived from 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. This is done in the form of a joint resolution, which does not require presidential approval. Once an amendment is approved by Congress, it is sent to the states for ratification.
The process of amending the Constitution is deliberately difficult and time-consuming. A proposed amendment must pass with a two-thirds majority in both houses of Congress, and then it must be ratified by the legislatures of three-quarters of the states (38 out of 50). This ensures that any amendment has a significant impact on the country and secures the rights of citizens.
When Congress proposes an amendment, the Archivist of the United States, who heads the National Archives and Records Administration (NARA), is responsible for administering the ratification process. The Archivist notifies each state's governor, who then submits the amendment to their state legislature or calls for a convention, depending on Congress's specifications.
To date, all 33 amendments submitted to the states for ratification have originated in Congress. The alternative method, a constitutional convention called for by two-thirds of state legislatures, has never been used. This is despite arguments that it would enable state legislatures to act as a check on national authority.
Once a proposed amendment is ratified by the required number of states, the Office of the Federal Register (OFR) drafts a formal proclamation for the Archivist to certify that the amendment is valid and has become part of the Constitution. This certification is published in the Federal Register and serves as official notice that the amendment process is complete.
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Ratification by state legislatures
The United States Constitution has been amended 27 times since it was first drafted in 1787. The process of amending the Constitution is outlined in Article V of the Constitution and consists of proposing an amendment and subsequent ratification.
Amendments can be proposed by Congress with a two-thirds majority vote in both the House of Representatives and the Senate. Alternatively, they can be proposed by a convention called for by two-thirds of state legislatures. However, in practice, all 33 amendments submitted to the states for ratification have originated in Congress.
Once an amendment is proposed, the Archivist of the United States is responsible for administering the ratification process. The Archivist notifies each state's governor, who then formally submits the amendment to their state legislature or ratifying convention.
The state legislatures play a crucial role in the ratification process. To become part of the Constitution, an amendment must be ratified by the legislatures of three-quarters of the states (38 out of 50 states). This ensures that any changes to the Constitution reflect the consensus of a significant majority of the country.
When a state ratifies a proposed amendment, it sends an original or certified copy of the state action to the Archivist, who forwards it to the Director of the Federal Register. The Office of the Federal Register (OFR) examines the ratification documents for authenticity and legal sufficiency. If the documents are in order, the OFR retains them until the amendment is adopted or fails.
The ratification process by state legislatures is a deliberate and meticulous procedure. It ensures that any changes to the Constitution are carefully considered and approved by a substantial majority of the states. This process safeguards the integrity and longevity of the Constitution, ensuring that it can endure for ages, as intended by its framers.
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The role of the Archivist
The Archivist has delegated many of the day-to-day duties associated with this function to the Director of the Federal Register. However, the Archivist still plays a key role in several important steps of the process. Firstly, when an amendment is proposed, the Archivist officially notifies the states by sending a registered letter to each state's governor. This letter informs the governors that an amendment has been proposed, and they, in turn, submit the amendment to their state legislatures or call for a convention, depending on Congress's specifications.
Another critical role of the Archivist is in certifying the validity of an amendment. Once the OFR has received and verified the required number of authenticated ratification documents, the Archivist certifies that the amendment is valid and has become part of the Constitution. This certification is done through a formal proclamation, which is published in the Federal Register and U.S. Statutes at Large. It serves as official notice to Congress and the nation that the amendment process has been completed. The signing of this certification has become a ceremonial function, often attended by various dignitaries, including the President.
It is important to note that the Archivist does not make any substantive determinations regarding the validity of state ratification actions. Instead, they follow procedures and customs established by the Secretary of State and the Administrator of General Services, who previously performed these duties. The Archivist's certification of the facial legal sufficiency of ratification documents is considered final and conclusive.
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The role of the Director of the Federal Register
The Director of the Federal Register has a variety of important roles and responsibilities. Firstly, they are responsible for the publication of official texts of federal laws, presidential documents, and regulations. This includes acts of Congress, which are published in slip law (pamphlet) form, and then cumulated and published for each session of Congress in the United States Statutes at Large. The Director also publishes the Federal Register, which is released daily and contains current presidential proclamations, executive orders, and federal agency regulations.
Another key role of the Director is their involvement in the constitutional amendment process. The Director receives and maintains custody of ratified amendment documents from State legislatures. They examine these documents for facial legal sufficiency and an authenticating signature. Once the Office of the Federal Register (OFR) verifies that it has received the required number of authenticated ratification documents, the Director drafts a formal proclamation certifying that the amendment is valid and has become part of the Constitution.
The Director of the Federal Register also has legal authority under the Administrative Committee of the Federal Register (ACFR). The ACFR was established in 1935 to oversee the functions of the Federal Register publication system. The Director, as Secretary of the ACFR, has the authority to implement and enforce ACFR regulations. They exercise day-to-day responsibility for Federal Register operations and publication policy, along with the staff of the OFR.
Overall, the Director of the Federal Register plays a crucial role in ensuring the proper publication of federal laws, regulations, and amendments, as well as overseeing the operations and policies related to the Federal Register.
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Article V of the Constitution
Article V of the United States Constitution outlines the procedure for altering the Constitution. It grants the authority to amend the Constitution and establishes a two-step process for doing so: proposing an amendment and subsequent ratification.
Amendments can be proposed in two ways: by Congress, with a two-thirds majority vote in both the House of Representatives and the Senate; or by a convention to propose amendments, called by Congress at the request of two-thirds of state legislatures. It is important to note that, historically, all amendments have originated in Congress, and no amendments have been proposed by a constitutional convention.
Once an amendment is proposed, it is submitted to the states for ratification. Ratification can occur through one of two methods, as determined by Congress: ratification by the legislatures of three-quarters of the states (38 out of 50 states), or by ratifying conventions conducted in three-quarters of the states. The latter method has only been used once in American history, during the 1933 ratification of the Twenty-First Amendment.
The ratification process is administered by the Archivist of the United States, who heads the National Archives and Records Administration (NARA). The Archivist notifies the states' governors of the proposed amendment, who then submit it to their state legislatures or ratifying conventions. When a state ratifies an amendment, it sends an original or certified copy of the state action to the Archivist, who forwards it to the Director of the Federal Register for processing. Once the required number of authenticated ratification documents is received, the Archivist certifies that the amendment is valid and has become part of the Constitution.
The amendment process outlined in Article V is intentionally difficult, as the framers of the Constitution wanted to ensure its longevity. As James Madison wrote in The Federalist No. 43, the process guards "against that extreme facility which would render the Constitution too mutable; and that extreme difficulty which might perpetuate its discovered faults." As a result, the Constitution has been amended only 27 times since it was drafted in 1787.
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Frequently asked questions
The authority to amend the US Constitution is derived from 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 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.
The Archivist of the United States is responsible for administering the ratification process. They notify each state governor that an amendment has been proposed, and they certify that the amendment is valid and has become part of the Constitution once it has been ratified by a sufficient number of states.
The process of amending the Constitution is very difficult and time-consuming, with only 27 amendments since it was drafted in 1787. This is because the framers of the Constitution intended for it to be a durable document that would "endure for ages to come".









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