# Verification record — `sg/lta/road-tax-renewal` v1.0.0 This file is the **source-review record** for this document version, per the [`manual-source-review-v1`](../../../../../practices/manual-source-review-v1.md) practice. It documents the provenance of the published fields and flow and states the current verification claim honestly. ## Current claim - **`status`:** `draft` - **`verification.method`:** `manual-source-review-v1` - **`verification.lastVerifiedAt`:** `2026-07-04` The document was derived directly from the live OneMotoring **guidance page**, not from a downloadable form or an independently captured screen flow, because neither exists for this process. The live transactional "Renew Road Tax" digital service is Singpass-gated with no public test/ sandbox mode, so the full field-by-field comparison `manual-source-review-v1` (Procedure step 2) requires against a live portal has **not** been completed. It therefore remains `draft`, not `verified`. ## Sources examined - **Document `(id, version)`:** `sg/lta/road-tax-renewal` / `1.0.0` - **Spec version:** GovSchema `0.3.0` - **Authority:** Land Transport Authority (LTA), Singapore. - **Primary source URL:** ("Road Tax") — fetched directly with `curl`, HTTP 200, a genuine server-rendered page (not a JS SPA shell). Read in full, including the "Understanding road tax", "Renewal prerequisites", "Road tax surcharge for vehicles over 10 years", "Where to renew your road tax" (the 4 payment channels: Online, AXS Services, GIRO, Road Tax Collection Centres), and "Late renewal fees" sections. - **Transactional service checked and found unusable as a direct source:** — fetched directly, HTTP 200, but the response body is only a client-side redirect stub ("LTA | Renew Road Tax / redirecting...") into a Singpass-authenticated session, consistent with the same Singpass-gating already documented for `sg/lta/vehicle-ownership-transfer`. - **Retrieved / reviewed:** 2026-07-04. - **Reviewer:** GovSchema Engineering (Standards Engineer — initial authoring source review). ## What was directly observed vs. inferred | Field(s) | Basis | |---|---| | `vehicleRegistrationNumber` | **Directly observed**, "How to check the road tax amount to pay — You can check how much road tax to pay by entering your Vehicle Registration Number". | | `isWeekendOffPeakOrRevisedOffPeakCar`, `renewalPeriodMonths` (12-month restriction) | **Directly observed**, verbatim: "For Weekend Cars/Off-Peak Cars/Revised Off-Peak Cars and Heavy Vehicles, there may also be additional prerequisites to meet. The road tax of Weekend Cars/Off-Peak Cars/Revised Off-Peak Cars can only be renewed on a 12-monthly basis." The 12-month restriction itself is recorded only in the field `description` (not a `validation` keyword), since GSP-0013's condition grammar gates `required`/`visible`, not a specific allowed *value* of another field. | | `isHeavyVehicle` | **Directly observed**, verbatim list of the four heavy-vehicle criteria under "For heavy vehicles". | | `insuranceCoverageConfirmed` | **Directly observed**, "Renewal prerequisites — Vehicle insurance coverage — Make sure your vehicle is covered by insurance for the entire period you are paying road tax. The vehicle insurance must cover third-party liability for deaths and bodily injury." | | `vehicleInspectionDue`, `vehicleInspectionPassed` | **Directly observed**, "Vehicle inspection (if one is due) — If your vehicle is due for periodic inspection, you will receive an inspection notice about 3 months before your road tax expires." and the "Pass the required vehicle inspection, if it is due" prerequisite bullet. | | `noOutstandingFinesConfirmed` | **Directly observed**, "Outstanding fines from LTA, HDB, URA and Traffic Police (TP) — If your vehicle has outstanding fines or warrants from LTA, HDB, URA and TP, it may prevent you from renewing your road tax." | | `numberPlateSealInspected` | **Directly observed**, "For Weekend Cars / Off Peak Cars / Revised Off Peak Cars — Inspect your vehicle number plate seals at an LTA-Authorised Inspection Centre." | | `validVehicleParkingCertificate` | **Directly observed**, "For heavy vehicles — Heavy vehicles must have a valid Vehicle Parking Certificate (VPC)." | | `paymentMethod` | **Directly observed**, "There are 4 different ways to renew your road tax: ... Online / AXS Services / GIRO / Road Tax Collection Centres", corroborated by the "Where to renew your road tax" section's numbered list. | | `onlinePaymentInstrument` | **Directly observed**, "1. Online at OneMotoring ... You will need: ... A valid credit or debit card (VISA or MasterCard only) or an Internet Banking account with DBS/POSB, OCBC/Plus!, Standard Chartered Bank or UOB (eNETS Debit)." | | `axsPaymentInstrument` | **Directly observed**, "2. AXS Services ... At AXS Stations, you can pay by: ... For AXS m-Station & e-Station, you can pay by: ..." (all six listed instruments transcribed verbatim into the enum). | | `documents[].motorInsuranceCertificatePrintout`, `documents[].vehicleInspectionCertificatePrintout` | **Directly observed**, "4. At Road Tax Collection Centres — Meet all renewal prerequisites in advance and bring along the original prerequisite documents. e.g. printout of your motor insurance certificate and vehicle inspection certificate." The inspection-certificate document is additionally gated on `vehicleInspectionDue` being true, since an inspection not due has no certificate to print. | | `documents[].roadTaxPayment` | **Directly observed reference** (the surcharge table under "Road tax surcharge for vehicles over 10 years" and the four late-renewal-fee tables under "Late renewal fees"); amount not encoded as a fixed field value, since LTA computes the base rate, surcharge, and any late fee automatically from the vehicle's engine capacity, age, and days past expiry — none of which the applicant enters directly in this transaction. | ## Explicitly out of scope for v1.0.0 - **Enrolling in a new GIRO arrangement.** The source describes GIRO enrolment as a distinct "How to apply" flow via eGIRO (bank-login-gated, with a paper fallback "online form" for ineligible banks/foreign passport holders) that, once approved, causes *future* renewals to happen automatically without a manual transaction. `paymentMethod: giro` in this schema represents renewing via an *already-existing* arrangement (one of the source's own "4 ways to renew"), not the enrolment application itself. - **First-time vehicle registration/import** and **road-tax proration on sale/deregistration** (transfer-following-the-vehicle and refund on deregistration) — both explicitly described on the same page as distinct events, not renewals. - **Computing the exact amount payable.** The surcharge and late-fee tables are transcribed into `documents[].roadTaxPayment.sourceRef` for reference but not modelled as enterable fields, consistent with this registry's fee convention on schemas where a government authority computes the amount from data it already holds (cf. `in/morth/vehicle-registration-renewal`'s `renewalFee`). ## Test run with mock data A mock renewal packet was assembled at `conformance/sg/lta/road-tax-renewal/1.0.0/application-packet.json` for an ordinary (non-Weekend/Off-Peak, non-heavy) private car renewing for 6 months online by credit/debit card — a fabricated vehicle registration number, not a real vehicle. Following the scripted-conformance-check technique introduced for `in/morth/vehicle-registration-renewal`, a small ad hoc script re-implementing the schema's own `required`/`requiredWhen`/ `eligibleValues`/`validation.enum` evaluation (GSP-0013 condition grammar `all`/`any`/`not`/leaf-compare) was run against the packet's `collectedValues`: 16 field/document entries evaluated, 0 violations. The packet exercises the online/no-inspection-due/ordinary-vehicle branch; the `axs`, `giro`, and `collection_centre` payment branches, the Weekend/Off-Peak-Car branch, the heavy-vehicle branch, and the inspection-due branch were reasoned through manually against the source text rather than exercised in a second packet. No value was submitted to any government system: the live OneMotoring "Renew Road Tax" service is a Singpass-gated transactional portal with no public test/sandbox mode, so — consistent with this registry's treatment of other credential-gated live services — this review did not attempt to exercise a live wizard end to end. ## Scope and jurisdiction notes This closes Singapore's DMV "Registration/Tag" renewal gap flagged as open in `in/morth/vehicle-registration-renewal`'s VERIFICATION.md: per the GOV-960 audit lineage, India, New Zealand, and Singapore were the three jurisdictions with a published Drivers-Licence schema but no recurring Vehicle Registration/Tag renewal schema (as opposed to the one-time Title/ ownership-transfer schema, already published for all three). New Zealand remains open for a future cycle. CA/Ontario's `ca/on/mto/vehicle-permit-renewal` also remains open, a `candidate` twice blocked on a live-wizard eligibility lookup requiring a real, already-issued plate/permit pair. ## Path to a `verified` claim (next step) To advance to `status: verified`, a reviewer applies `manual-source-review-v1` (Procedure step 2) field-by-field against the live OneMotoring "Renew Road Tax" service using a genuine Singpass login and an actual registered vehicle, confirms the exact AXS/online payment-instrument options still offered, resolves any discrepancy by shipping a **new schema version** (immutability — VERSIONING §3, practice Procedure step 5), and records the outcome here plus sets `status: verified` with a current `verification.lastVerifiedAt`/`nextReviewBy`. ## Re-verification Per the practice's **Cadence**, `nextReviewBy` is set to **2027-01-01** (6 months). Re-check the source on or before that date and on any `source.url` change.