I don't know 100% what the Society's Current Blood Policy is (I don't know if even the Governing Body and Elders do anymore).
However, here is what I have heard is now ALLOWED by the Society:
Vaccinations (Shots) even if they contain Blood!
Organ Transplants even though the Organs contain Blood! (Probably a large amount of Blood too!)
Bone-Marrow Transplants
Hemophiliac Blood Treatments
All sorts of Blood Fractions
Here is a Pharisee-Like List of the "Acceptable Blood Fractions" which Witnesses are now allowed to accept (at least this is what I have heard, not 100% sure):
*Factor VIII
*Gamma Globulin
*Blood Plasma Proteins
*Albumin
*Immune Globulins
*Rh Immune Globulin
*Hemophiliac Preparations
*Clotting Factors
*Synthetic Hormone EPO (Erythropoietin) (contains only "a small amount of Albumin")
*Autologous Blood (Autotransfusion) (Where your own Blood "flows out through a tube to the Artificial Organ that pumps and filters (or oxygenates) it, and then it returns to the patient's circulatory system")
*Hemodilution
*HemoPure (Cow's Blood)
*PolyHeme
Also in a 1960's Article the Watchtower Society said that Jehovah's Witness Doctors CAN GIVE Blood Transfusions to those evil "Worldly People!" (However Witnesses are not even allowed to give Blood to their PETS -- Does this seem odd? I guess the Watchtower Society is basically saying that "Worldly People" are so wicked that it doesn't matter if you give them Blood, yet your Pets are better than Worldly People)
Here are some Comments I found about the Society's Blood Policies on a Website (can't remember which Website though):
Who is Blood Guilty before Jehovah God? If the Society believes you should not have Blood according to the Bible, then where in the Bible does it allow certain parts of Blood? What about all of the followers of the Society that needed a Blood Fraction (which is now allowed) when they were in their "not allowed mode"? Did any of these die needlessly? Does Jehovah give "New Light Blinking Back and Forth" to the Governing Body so they can keep adjusting their stand on parts of Blood?)
Jehovah's Witnesses are now allowed to accept ALL of the components of Blood, as long as you separate the components and then accept them!
Is there any logic in this?
I will try to post Quotes about their Blood Policy soon.
Also, check out http://www.ajwrb.org for TONS of info on the Society's Blood Policies.