When read together, CALJIC No. 1.20 on willfulness and CALJIC No. 3.30 on general intent, and instructions on the elements of the offense, adequately informed the jury that in order to be convicted of failing to register as a sex offender under Penal Code section 290, appellant was required to have knowledge that he was required to register. The general intent instruction required an “intentional” failure to register and the willful instruction required a “purpose or willingness” to make the omission. Moreover, as a matter of law, forgetting to register (when one has actual notice of requirement), by itself, does not negate willfulness for purposes of violating the registration updating requirement. (2-1)