UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G
Under the Securities Exchange Act of 1934

BlackRock Credit Allocation Income Trust III Inc. (BPP)

(Name of Issuer)

Auction Rate Preferred

(Title of Class of Securities)

09249V202
09249V301
09249V400

(CUSIP Number)

December 31, 2009

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

X   Rule 13d-1(b)
__ Rule 13d-1(c)
__ Rule 13d-1(d)