You don't refer to a specific line number, but, generally, Column E is used for income from all sources while someone is a California resident, and income from California sources while someone is a nonresident.
For nonresidents specifically, it should reflect income derived from California sources.
If you're a full-year nonresident, then, for each line with a Column E on Schedule CA (540NR), you should follow the "California Nonresident Amounts" instructions related to each line in the Instructions for Schedule CA (540NR).
I'm military domiciled in California, stationed in Las Vegas, NV. My refined question is for Part II, Line 5e as to what to enter for pensions and annuities since I withdrew money from my retirement account in which only $1,433 was taxable on my federal return. Looking at the instructions for Schedule CA 540NR, nonresidents aren't taxed on withdrawals. Any assistance is greatly appreciated.
If you are domiciled in California, you are a resident of CA for tax purposes and should be filing a resident return, according to the CA-FTB.
If you have changed your state of legal residence on Form 2508, from CA to another state, or are in another state via a Permanent Change of Station (PCS), you would file the nonresident return and enter 0 for CA taxable retirement income.
FTB Pub 1100 - California does not tax the IRA distributions, qualified pension, profit sharing, and stock bonus plans of a non-resident.