'major amendments' is correct and usable in written English.
You can use it when referring to changes made to a document, a law or any other important document or structure. Example sentence: "The government proposed major amendments to the current tax code in response to the public outcry."
Major amendments were introduced at the last minute and then not debated.
Mr. Alexander appeared to close the door on additional major amendments to the deal.
Over six and a half years, Schering filed 37 major amendments to its application.
"The decision overlooks major amendments that were adopted by Congress to prohibit precisely what Fleet has done".
Not only have imported goods and services become more expensive as the pound has dropped in value, this year has also seen two major amendments to employment law.
Others balked at this, seeing it as an attempt to postpone into the far future any major amendments to the sanctions regime.
The Reagan Administration, asserting that a provision of the Federal Government's major antirackeetering statute is being abused by private lawsuits, has proposed a major amendment to the law.
Before 2005, the last major amendment to the Uniform Time Act came in the mid-80s when the start of daylight time was moved back to the first Sunday in April.
The announcement came only four days after President Vladimir V. Putin of Russia, speaking alongside President Bush in Shanghai, said the two nations had an "understanding that we can reach agreements," a comment widely interpreted to mean that they were headed toward a major amendment of the treaty.
Soon after we received this statement, The Guardian issued a major "amendment" to their story.
The Finance Ministry is currently drafting an overhaul for the nation's securities law, the first major amendment since 2010.
