The invalidity or unenforceability of any provision of these rules shall not affect the validity or enforceability of any other provision.

CNN: Inside the Envelope

The invalidity or unenforceability of any provision of these rules shall not affect the invalidity or unenforceability of any other provision.

WSJ: Blindfold Brackets 2013: Official Rules

The unverifiability and unenforceability of a ban on production of such devices, however, virtually ensures that this practice will continue in the future.

CENTERFORSECURITYPOLICY: Open Letter to the Senate re: Landmines

The Committee would be well advised to heed Mr. Feith's advice that emphasis should be placed upon fixing the existing Geneva convention rather than exacerbating its present shortcomings -- namely its unenforceability -- with a new treaty that will be neither verifiable, nor effective nor enforceable.

CENTERFORSECURITYPOLICY: Center For Security Policy