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The MO statute changing the emancipation age does not specify it applies to cases after a certain date and thus it is likely to be interpreted by the MO courts to apply to all child support orders written in MO. Because the law does not specify any date for the emancipation age to be effective, it applies to all cases and as such it would apply to your case as well and if your ex sues you for non-payment, it is more likely than not the court will concur that based on the change in the law your support has ceased because of emancipation at 21 (the majority of the MO courts are finding this, but there is no MO Supreme Court ruling on this yet).
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