The phrase "automatic expiration" is correct and usable in written English.
It can be used in contexts where something is set to expire or become invalid automatically after a certain period or condition is met.
Example: "The subscription comes with an automatic expiration after one year unless renewed."
Alternatives: "automatic termination" or "self-expiration".
While the state's Local Emergency Rent Control Act has no automatic expiration date, New York City must nevertheless renew its local Rent and Rehabilitation Law for rent control to remain in effect after March 31, 2000.
The pact would last for 16 years, the US said, and be reviewed every six years - but will not carry the threat of automatic expiration.
If Obama wins re-election in November 2012 he'll also likely see his Democrat colleagues regain control of the House, and then taxes will rise considerably on the rich (and others) without a single vote and almost immediately (effective January 2013), given the in-built automatic expiration of the Bush tax cuts.
If such laws are passed, they also should have an automatic expiration date.
When Lorrie Cranor joined the Federal Trade Commission as chief technologist in January, she was stunned to learn that six of her government passwords came with automatic expirations.
In England discharges are automatic after the expiration of specified periods, usually three years, unless the court has suspended or conditioned the running of the period.
In addition to turning off as soon as you meet, Jink also has other privacy-saving features, like the automatic pausing and expiration of location sharing if a meetup doesn't occur.
Indeed, Visa and MasterCard have programs that allow participating card companies and merchants to get new expiration dates automatically so they can continue customers' automatic bill payments.
The two parties have been fighting for months over how to deal with the combination of automatic spending cuts and the expiration of Bush-era tax reductions at the new year.
Rep. Barney Frank (D-Mass)., another outspoken liberal, said recently the super committee failure was "good news" for Democrats since the party will have more leverage in 2013 because of the automatic defense cuts and the expiration of the Bush tax cuts.
According to the Congressional Budget Office, the combined impact of the automatic spending cuts plus the scheduled expiration of the Bush-era tax cuts — the so-called fiscal cliff — would cause the economy to contract in the first half of 2013.
