Minn. Stat. § 121A.33: CERTAIN MERCURY USE IN SCHOOLS PROHIBITED.

(a) For the purposes of this section, "school" has the meaning given under section 120A.22, subdivision 4, excluding home schools.

(b) After December 31, 2007, a school shall not:

(1) purchase or use elemental mercury for any purpose; and

(2) purchase or use an instrument of measurement that contains mercury, including, but not limited to, a thermometer, barometer, or sphygmomanometer, or a manometer containing mercury.

(c) After December 31, 2009, a school shall not:

(1) store elemental mercury for any purpose; and

(2) store an instrument of measurement that contains mercury, including, but not limited to, a thermometer, barometer, sphygmomanometer, or a manometer containing mercury.

(d) This section does not apply to thermostats for heating, ventilation, and air conditioning in the school.