CR-008 · contract change notice · 1 page · sha256 9cd26ea32fd907bd…
Contract change notice correctly below threshold (negative control)
A +6.0% uplift with no term change, correctly made under section 74(1)(c). Money is printed as £4 200 000. No high-severity flag should be raised; this catches over-eager rule engines.
Hazards
- negative_control - Nothing is wrong with this document; a rule engine should raise no high-severity flag.
- money_spaced_format - Money printed with spaces as thousands separators (£4 200 000).
- date_uk_format - Dates printed as DD/MM/YYYY.
- percent_not_printed - The modification percentage is not printed and must be computed from the values.
Pages
Page 1
Gold labels and extractor output
✓ correct · ✗ wrong · – missing. Blank means the field is null in the gold and the extractor returned nothing (not counted).
| Field | Gold | llm:nim/z-ai/glm-5.3-flash:text | llm:nvidia/nemotron-3-ultra-550b-a55b:free:text | naive_text |
|---|---|---|---|---|
notice_type | contract_change_notice | ✓ contract_change_notice | ✓ contract_change_notice | ✓ contract_change_notice |
notice_reference | 007311-2026 | ✓ 007311-2026 | ✓ 007311-2026 | ✓ 007311-2026 |
contracting_authority critical | Wexcombe Borough Council | ✓ Wexcombe Borough Council | ✓ Wexcombe Borough Council | ✓ Wexcombe Borough Council |
contracting_authority_type | sub_central | ✓ sub_central | ✓ sub_central | ✓ sub_central |
supplier_name critical | Brightwater Environmental Services Limited | ✓ Brightwater Environmental Services Limited | ✓ Brightwater Environmental Services Limited | ✓ Brightwater Environmental Services Limited |
supplier_registration_number | 07720941 | ✓ 07720941 | ✓ 07720941 | ✓ 07720941 |
contract_title critical | Environmental Services Partnership (Street Cleansing) | ✓ Environmental Services Partnership (Street Cleansing) | ✓ Environmental Services Partnership (Street Cleansing) | ✓ Environmental Services Partnership (Street Cleansing) |
contract_reference | WBC/2025/0119 | ✓ WBC/2025/0119 | ✓ WBC/2025/0119 | ✓ WBC/2025/0119 |
procurement_type | services | ✓ services | ✓ services | ✓ services |
light_touch | false | ✓ false | ✓ false | ✓ false |
procedure | open | ✓ open | ✓ open | ✓ open |
cpv_codes | ["90610000", "90611000"] | ✓ ["90610000", "90611000"] | ✓ ["90610000", "90611000"] | ✓ ["90610000", "90611000"] |
notice_published_date | 2026-06-02 | ✓ 2026-06-02 | ✓ 2026-06-02 | ✓ 2026-06-02 |
award_date | 2025-09-30 | ✓ 2025-09-30 | ✓ 2025-09-30 | ✓ 2025-09-30 |
contract_signed_date | 2025-10-28 | ✓ 2025-10-28 | ✓ 2025-10-28 | ✓ 2025-10-28 |
contract_start_date critical | 2025-12-01 | ✓ 2025-12-01 | ✓ 2025-12-01 | ✓ 2025-12-01 |
contract_end_date critical | null | ✗ 2030-11-30 | ✗ 2030-11-30 | · |
extension_options_months | 24 | ✓ 24 | ✓ 24 | ✓ 24 |
maximum_term_months | 84 | ✓ 84 | ✓ 84 | – null |
contract_value_gbp critical | null | ✗ 4,200,000 | ✗ 4,452,000 | · |
value_includes_vat | false | ✓ false | ✓ false | – null |
number_of_tenders_received | null | · | · | · |
kpis | null | · | · | · |
payment_terms_days | null | · | · | · |
standstill_end_date | null | · | · | · |
lots | [] | · | · | · |
modification_number | 2 | ✓ 2 | ✓ 2 | ✓ 2 |
modification_date | 2026-06-15 | ✓ 2026-06-15 | ✓ 2026-06-15 | ✓ 2026-06-15 |
modification_description | Uplift to the schedule of rates to reflect the 2026/27 National Living Wage increase, applied to the cleansing operatives' labour element only. | ✓ Uplift to the schedule of rates to reflect the 2026/27 National Living Wage increase, applied to the cleansing operatives' labour element only. | ✓ Uplift to the schedule of rates to reflect the 2026/27 National Living Wage increase, applied to the cleansing operatives' labour element only. | ✗ Uplift to the schedule of rates to reflect the 2026/27 National Living Wage increase, |
modification_ground critical | s74_below_threshold | ✓ s74_below_threshold | ✓ s74_below_threshold | ✓ s74_below_threshold |
original_contract_value_gbp | 4,200,000 | ✓ 4,200,000 | ✓ 4,200,000 | – null |
revised_contract_value_gbp | 4,452,000 | ✓ 4,452,000 | ✓ 4,452,000 | – null |
value_change_gbp critical | 252,000 | ✓ 252,000 | ✓ 252,000 | ✗ 252 |
value_change_percent | 6 | ✓ 6 | ✓ 6 | – null |
original_end_date | 2030-11-30 | ✓ 2030-11-30 | ✓ 2030-11-30 | – null |
revised_end_date critical | 2030-11-30 | ✓ 2030-11-30 | ✓ 2030-11-30 | ✓ 2030-11-30 |
term_change_months | 0 | ✓ 0 | ✓ 0 | ✓ 0 |
contract_change_notice_published | true | ✓ true | ✓ true | ✓ true |
voluntary_standstill | false | ✓ false | ✓ false | ✓ false |
Expected rule-engine flags
| Rule | Severity | Detail |
|---|---|---|
PA23-threshold-in-scope | info | Value £4,200,000 is at or above the services threshold £207,720 (inc VAT) applicable on 2026-06-02. |
Provenance: Fictional authority, supplier and figures. Generated for extraction testing; not a real notice. Generator crtest.gen 0.1.0, licence CC0-1.0.