This is from the published bill. The Library of Parliament often publishes better independent summaries.
This enactment amends the Criminal Code to
(a) permit an individual whose death is not reasonably foreseeable to enter into a written arrangement to receive medical assistance in dying on a specified day if they lose the capacity to consent to receiving medical assistance in dying prior to that day; and
(b) permit an individual who has been diagnosed with a serious and incurable illness, disease or disability to make a written declaration to waive the requirement for final consent when receiving medical assistance in dying if they lose the capacity to consent to receive medical assistance in dying, are suffering from symptoms outlined in the written declaration and have met all other relevant safeguards outlined in the Criminal Code .