Which appears to say that
2. Someone seeking health care for themselves related to a drug or alcohol overdose cannot be prosecuted for drug or alcohol use (based on evidence obtained as a result of seeking care),
1. In recognition that a person experiencing drug overdose may not be in a state to seek health care for themselves, and people sometimes engage in drug use in groups of two, someone seeking health care for a third party experiencing drug overdose cannot be prosecuted for their own drug use (based on evidence obtained as a result of seeking care),
and 5. In recognition that no one would ever engage in drug use in groups of three or more, any evidence obtained as a result of someone seeking health care may be freely used against anyone who neither made the request for health care nor experienced the overdose themselves.
(There is also some text about class A-I and A-II felonies being exempt from the good samaritan provisions.)
I don't see any obligation mentioned in the bill, although point 5 does seem a little ill-advised to me.