MA/NY DDave,
See California's Senate Bill 20 (SB20) and Senate Bill 50 (SB50).  I
have links to these bills, as well as to the actual resulting
regulations, as references [12] through [18] in my (now) 218-page
Bibliography for Designing Lead-Free, RoHS-Compliant, and WEEE-Compliant
Electronics, at
   http://www.dbicorporation.com/rohsbib.htm

The earliest reference to January 1, 2007 that I've found is in SB20, at
   http://www.leginfo.ca.gov/pub/03-04/bill/sen/sb_0001-0050/
   sb_20_bill_20030925_chaptered.pdf
on the very first page, last paragraph, line 11.

                John Barnes KS4GL, PE, NCE, ESDC Eng, PSE, SM IEEE
                dBi Corporation
                http://www.dbicorporation.com/

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