Cal. Rev. & Tax. Code § 17306

In the case of a nonresident or part-year resident, in computing “taxable income of a nonresident or part-year resident” under paragraph (1) of subdivision (i) of Section 17041, references to “adjusted gross income” for purposes of computing limitations based upon adjusted gross income, shall mean “California adjusted gross income” (as defined in Section 17301.3) for the same taxable year without regard to the limitation used pursuant to paragraph (2) of subdivision (h) of Section 17024.5 in computing “total adjusted gross income” (as defined in Section 17301.4) for that taxable year.