February 15, 2012
EDGAR
United States Securities and
Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
| Re: | Form N-CSR |
| John Hancock Collateral Investment Trust (the “Registrant”) | |
| File Nos. 811-22303 | |
Ladies and Gentlemen:
Enclosed herewith for filing pursuant to the Investment Company Act of 1940 and the Securities Exchange Act of 1934 is the Registrant’s Form N-CSR filing for the period ending December 31, 2011.
If you have any questions or comments regarding this filing, please contact the undersigned at (617) 663-4490.
| Sincerely, | |
| /s/ Michael J. Leary | |
| Michael J. Leary | |
| Treasurer |