Severance Permutation

In competitive policy debate, a permutation ("perm") is a test of competition: the affirmative argues that the negative's counterplan or kritik alternative is not mutually exclusive with the plan because both can be done together. A severance permutation is a specific subtype in which the affirmative drops, alters, or "severs" some portion of its originally advocated plan text or representations in order to make the perm functionally compatible with the negative position.

Severance perms are widely considered theoretically illegitimate by most judges and debate communities. The standard objection is that the affirmative is supposed to defend a stable advocacy from the 1AC onward; allowing it to shed planks mid-round creates a moving target the negative cannot meaningfully clash with. Common arguments against severance include:

• Predictability / ground loss: the negative researches disadvantages and counterplans against the plan as written, and severance erases that link ground.
• Conditionality concerns: severance effectively makes the affirmative's plan conditional, which most judges find more abusive than negative conditionality.
• Resolves no offense: a non-severance perm should be sufficient if the perm is genuinely a test of competition.

Affirmatives sometimes defend severance perms by arguing they are only severing representations (in answer to a kritik) rather than plan text, or that the negative's counterplan itself is intrinsic or abusive and justifies reciprocal flexibility. They may also argue severance is a legitimate test against counterplans that compete only off certainty or immediacy.

The closely related intrinsicness permutation adds something not in either advocacy, while a severance perm subtracts from the plan. Both are typically grouped under "illegitimate perms" in theory debates, contrasted with the orthodox "perm: do both" or "perm: do the counterplan."