Motion to Dismiss

A motion to dismiss under FRCP Rule 12(b) is a pre-answer motion challenging the complaint on procedural or substantive grounds, including lack of jurisdiction, improper venue, insufficient service, or failure to state a claim upon which relief can be granted.

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Exam Tip

12(b)(1) SMJ = NEVER waived. 12(b)(2)-(5) = waived if not in first motion. 12(b)(6) = plausibility (Twombly/Iqbal). California equivalent = demurrer.

What is a Motion to Dismiss?

A motion to dismiss under Federal Rule of Civil Procedure 12(b) allows a defendant to challenge a lawsuit early, before filing an answer, on various procedural and substantive grounds. It is the federal equivalent of California's demurrer.

The Seven Rule 12(b) Defenses

DefenseGrounds
12(b)(1)Lack of subject matter jurisdiction
12(b)(2)Lack of personal jurisdiction
12(b)(3)Improper venue
12(b)(4)Insufficient process
12(b)(5)Insufficient service of process
12(b)(6)Failure to state a claim
12(b)(7)Failure to join required party under Rule 19

Waiver Rules (12(h))

Defense TypeWaiver Rule
12(b)(2)-(5)Waived if not raised in first motion or responsive pleading
12(b)(6), (7)May be raised through trial
12(b)(1)Never waived; may be raised anytime

12(b)(6) Standard (Twombly/Iqbal)

StepAnalysis
Step 1Identify and discard conclusory allegations
Step 2Assess whether remaining facts state "plausible" claim
Standard"Facial plausibility" - more than possible, less than probable

Key Principles

  • Court accepts all well-pleaded facts as true
  • Draws all reasonable inferences in plaintiff's favor
  • May consider complaint, attached documents, incorporated documents
  • Generally cannot consider matters outside the pleadings

California State Court Equivalent

FederalCalifornia
12(b)(6) MotionDemurrer (CCP Section 430.10)
12(b)(2) MotionMotion to Quash (CCP Section 418.10)

Timing

Federal RuleDeadline
Pre-Answer Motion21 days after service (or 60 days if waiver of service)
Opposition21 days before hearing (local rules vary)
Reply14 days before hearing

Landmark Cases

  • Bell Atlantic v. Twombly (2007): "Plausibility" standard replaces "no set of facts"
  • Ashcroft v. Iqbal (2009): Two-step analysis; applies to all civil cases
  • Conley v. Gibson (1957): Old "no set of facts" standard (overruled)

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