California Code of Regulations section 18421.7 (PDF) requires detailed itemization regarding certain expenditures for gifts, meals, or travel by a committee controlled by a candidate. See, also, Government Code section 84211(k)(4). The regulation applies to reporting of expenditures of $100 or more made after June 30, 2008.
The information required by Regulation 18421.7 should be disclosed in the "Description of Payment" field of Schedule E, F, or G for each applicable entry. If additional space is needed, the "memo field" should be used.