Here is the link the OP needs
http://www.mnr.gov.on.ca/en/Business/FW/2ColumnSubPage/STEL02_168766.html#possession
Items in the regulation include:
1. It is now illegal in Ontario to possess any part of the antlers, head, brain, eyes, tonsils, hide, hooves, lymph nodes, spleen, mammary glands, entrails, internal organs or spinal column of any member of the deer family that has been killed outside Ontario.
2. The prohibition above (#1) does not apply to finished taxidermy mounts, tanned skin, canine teeth with no tissue attached.
3. Antlers or antlers with skull cap attached may be legally possessed as long as there is no tissue or skin attached to them and they are separate from the remainder of the skull.
4. It is also legal to possess a hide or skin of the head of any member of the deer family including that part of the hide commonly referred to as the "cape" only if:
all other tissue is removed, AND
it is kept in a container from which nothing can escape, (e.g., cooler taped shut, enclosing the animal in plastic or a tarp), AND
it is delivered to a tanner or taxidermist within five days of coming into Ontario.
5. If all or portion of the hide or skin of the head identified above (#4) is disposed of, it must be done at a waste disposal site authorized under the Environmental Protection Act such as a municipal landfill.
6. None of these rules (#1 to #5) apply to the prohibited parts (the antlers, head, brain, eyes, tonsils, hide, hooves, lymph nodes, spleen, mammary glands, entrails, internal organs or spinal column) of any member of the deer family if they are transported through Ontario to another jurisdiction in a container from which nothing can escape, (e.g., cooler taped shut, enclosing the animal in plastic or a tarp).
7. If you are transporting the antlers, head, brain, eyes, tonsils, hide, hooves, lymph nodes, spleen, mammary glands, entrails, internal organs or spinal column of any member of the deer family in a container as described above, it must be labelled to show the species of cervid, the place where it was acquired and the name and address of the person who owns the parts in the container.
8. If you have transported a member of the deer family into Ontario that was harvested or killed in another jurisdiction, but later find out that it has tested positive for CWD, you must immediately notify a Ministry of Natural Resources Office and provide information as requested.