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There are two important components within the concept of "status:" First, there is classification under which the
person is admitted (i.e., student, visitor, temporary worker, etc.); and, Second, there is the duration (length) of the
stay permitted.
Both of these components may be modified by Citizenship and Immigration Services. A person admitted in one status may
seek a change of status into a new classification (such as from F-1 to H-1B1). Also, the duration of a person's stay
may be extended by the C.I.S.. Again, the validity period of a visa has nothing to do with the duration of a
nonimmigrant visitor's permitted stay.
"Unlawful Presence" vs. "Out of Status"
A nonimmigrant visitor violates his or her status if any of the following occur:
A person who violates his or her status becomes removable as of the moment the violation takes place. If the C.I.S.
becomes aware of such a violation of status they have the right to file an order to show cause re: removal against the
person. If the violation of status is then proven at a removal hearing, the person will be ordered removed. This is in
contrast to the newly defined "unlawful presence" classification that resulted from the 1996 Immigration Act. Effective
April 1, 1997, a person who remains in the United States in "unlawful presence" for more than 180 days and then departs
voluntarily, must remain outside the U.S. for three years before being eligible to immigrate. A person who remains in
"unlawful presence" for more than twelve months must remain outside for ten years.

The term "unlawful presence" is not synonymous with "in violation of status." Many people who violate their
nonimmigrant status are "in unlawful status" for purposes of this new provision in the law. Generally speaking, a
nonimmigrant is not "in unlawful presence" unless he or she has remained longer that the period of stay explicitly
granted on his or her form I-94. Even if the person worked without authorization, they are only in "violation of
status" not "unlawful presence." In the case of a student with "D/S", he or she will not be considered in "unlawful
presence" even if the student stops going to school, works without permission, or otherwise violates status. The
exception to this rule is in a case where the C.I.S. has told the person that they are in unlawful status. At that
point, and only at that point, does the person begin to accrue consecutive days in "unlawful presence."
"grace period"
One of the more persistent Internet myths is that the law provides a "grace period" for nonimmigrants to switch from
one nonimmigrant classification to another. It does not.
If an H-1B worker ceases working for the sponsoring company, irrespective of whether it is by resignation or
termination, that worker's H-1B status terminates immediately. The law does provide a ten day period for the worker to
leave the country before going into unlawful presence, but this is not a grace period for the filing of a new
nonimmigrant petition or application.
Automatic extensions
There are two types of automatic extensions of status provided in the law. The first involves nonimmigrants with
working type visas. If a person in one of these classifications applies for an extension of stay, before the expiration
date of his or her current stay, then the law provides for an automatic 240 day extension of stay and extension of work
authorization (8 CFR 274A).
The second is not really an automatic extension, but rather a formal policy of the C.I.S. If any nonimmigrant files for
a change of status or an extension of stay, prior to the expiration of their current authorized stay, they are
permitted to remain in the U.S. in lawful status until the time they requested has expired or a decision is reached by
the C.I.S. - whichever occurs first.