Start by identifying the exact registration duty, its triggering date, and the agency involved, then compare the records for each required update. California registration duties are not all the same: initial or residence-change registration, a birthday update, transient updates, and notice after a move can have separate triggers. The applicable duties also depend on the person’s status. A single annual receipt may not establish compliance with every requirement.

Build a dated record of each required step

Create a timeline from the underlying conviction, release, supervision, or other event that explains the registration obligation. Record each address and move, the date of each birthday update, any transient status, the agency visited, the forms provided, and what proof or receipt was given. Separate what you remember from what a document confirms.

Useful records may include registration copies, appointment slips, signed forms, agency correspondence, residence documents, certified- or registered-mail receipts, and contemporaneous notes about an attempted visit. Keep the complete documents and their dates. Do not alter records or post sensitive registry information publicly; give copies to counsel through a private channel.

Match the record to the specific statutory duty

Penal Code section 290 places adult registrants in minimum ten-year, minimum twenty-year, or lifetime tiers. Completing a minimum period does not itself end the duty; eligible tier-one and tier-two registrants must use the separate termination process in section 290.5. Confirm the person’s current tier and whether a termination order has issued before treating the duty as ended. (Penal Code § 290 and § 290.5)

Recurring duties also differ by status. Section 290.012 generally requires an annual update within five working days of the person’s birthday, while it separately identifies a 90-day verification requirement for sexually violent predators and 30-day updates for transient registrants. The agency is to provide a copy of the DOJ registration requirements and submit updates to the registry. Check which category applies before treating one receipt as enough. (Penal Code § 290.012)

For a person last registered at a residence address, section 290.013 generally requires in-person notice to the last registering agency within five working days after moving. If the new address or location is unknown, the person must still give that in-person notice, then send the new location by certified or registered mail within five working days after moving into it. Transient registrants have separate requirements. Keep proof of each step and compare the dates to the exact statutory trigger. (Penal Code § 290.013)

Registration forms may request residence information and proof. Section 290.015 provides that a person who cannot provide proof of residence at registration may still register and supply it later under the statute’s conditions, including a 30-day period. Do not assume missing paperwork means registration can be postponed; counsel should review the exact circumstances and required form. (Penal Code § 290.015)

Compare both personal and agency records

Organize evidence by duty: what was required, when it was due, where it had to be submitted, and what record shows it was completed. A personal calendar entry or memory may help explain events, but it is different from an agency-stamped copy or mailing receipt. Conversely, a database entry may not show every attempt or document a person has retained. Counsel can compare lawful records from the person and agency and identify gaps or conflicting dates.

A failure-to-register charge generally requires a willful violation under Penal Code section 290.018, but that does not mean any bad address, contradictory oral instruction, missing receipt, or agency error automatically defeats a charge. The statute’s written-notice defense is narrow and tied to its specified 90-day verification provision; it is not a general defense for all registration allegations. (Penal Code § 290.018) An attorney should review the exact subdivision, duty, notices, and evidence before drawing a conclusion.

For a past alleged missed update, preserve the records and dates without sending sensitive personal information through a public form. Do not rely on an old website summary that says everyone has a lifetime duty; current tiers and obligations require case-specific review.

For more information on a failure-to-register accusation, see the Law Offices of David S. Chesley’s failure to register defense page. To discuss a particular allegation and records, call (800) 755-5174.