Wis. Stat. § 946.425: Failure to report to jail.

(1) Any person who is subject to a series of periods of imprisonment under s. 973.03 (5) (b) and who intentionally fails to report to the county jail as required under the sentence is guilty of a Class H felony.

(1m)

(a) Any person who receives a stay of execution of a sentence of imprisonment of less than 10 days to a county jail under s. 973.15 (8) (a) and who intentionally fails to report to the county jail as required under the sentence is guilty of a Class A misdemeanor.

(b) Any person who receives a stay of execution of a sentence of imprisonment of 10 or more days to a county jail under s. 973.15 (8) (a) and who intentionally fails to report to the county jail as required under the sentence is guilty of a Class H felony.

(1r)

(a) Any person who is subject to a confinement order under s. 973.09 (4) as the result of a conviction for a misdemeanor and who intentionally fails to report to the county jail or house of correction as required under the order is guilty of a Class A misdemeanor.

(b) Any person who is subject to a confinement order under s. 973.09 (4) as the result of a conviction for a felony and who intentionally fails to report to the county jail or house of correction as required under the order is guilty of a Class H felony.

(3) A prosecutor may not charge a person with violating both subs. (1) and (1m) regarding the same incident or occurrence.