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Alpha

This site is an alpha version and is still being developed in the open - your feedback will help us improve it. See the roadmap. Last updated: 14 October 2026.

Version in force: 0.3.0 (6 October 2026).

Guardrail exception request template

Use when you cannot meet a Must guardrail. See exceptions to guardrails.

# Exception request: <guardrail id> for <service>

| | |
| --- | --- |
| Guardrail | e.g. GR-HOST-01 Use Defra's strategic delivery platform by default |
| Service / product | |
| Requested by | |
| SDA view | Supports / Does not support / Not consulted |
| Duration requested | Until YYYY-MM-DD (maximum 12 months) |

## What we propose instead

## Why the guardrail cannot be met

User, business, technical, commercial or timing reasons. If cost, give the
estimated cost of meeting the guardrail.

## Risks and mitigations

| Risk | Likelihood | Impact | Mitigation | Owner |
| --- | --- | --- | --- | --- |

## Route back to the guardrail

What would need to change for the service to meet the guardrail, and when.

## Related

- ADR:
- Threat model:
- Security risk record (if a security control is affected):