MBE Rules · Civil Procedure
Amendment of Pleadings
FRCP 15(a)
The rule
A pleading may be amended once as of course within 21 days of service or of a responsive pleading or Rule 12 motion; otherwise amendment requires consent or leave, freely given when justice requires.
In plain English
A party can amend their pleadings without needing permission from the court or the other party within 21 days after serving the original pleading or receiving a response. After that period, any amendments require either the other party's consent or the court's approval, which is usually granted if it serves the interests of justice.
Worked example
A plaintiff files a complaint on January 1 and serves it on the defendant. The defendant responds on January 15. The plaintiff can amend the complaint as of right until February 5. If the plaintiff tries to amend the complaint on February 10 without the defendant's consent or court approval, the amendment will likely be denied.
Memory hook
Amend once for free, but ask for permission after 21!
The trap
Exams often present scenarios where students mistakenly believe they can amend pleadings freely after the 21-day window, leading to incorrect conclusions about the validity of amendments.
How examiners test it
Questions typically involve a timeline of events where a party attempts to amend pleadings, testing the candidate's knowledge of the 21-day rule and the need for consent or court approval thereafter.
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