Typically a SR-22 can be required for a different time period depending upon the offense or reason that a state mandates that it be carried.
For example Kansas State statute 40-3118 gives information on what is required if you fail to maintain financial security (auto insurance) on your vehicle. In subsection (d) it states that in addition to any other requirements of this act, the director shall require a person to acquire insurance and for such person's insurance company to maintain on file with the division evidence of such insurance for a period of one year.
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This twelve (12) month proof of insurance filing (SR-22 certificate) required by KS must be maintained continually throughout the year with no lapse in coverage. If even a one day lapse occurs and KS Department of Revenue is notified, the twelve (12) month SR-22 filing requirement re-starts, requiring a new twelve months of filing.
[Let CarInsurance.com help you find affordable auto insurance now.] If you are required to carry a SR22 in Kansas you should contact the state agency that is mandating you to do so and find out for what length of time you must maintain this certificate of financial responsibility. | 
