Terms & Conditions

Last updated: 26 July 2026

1. Who you are contracting with

This site is operated by Steven Timney (trading as Sierra Tango Safety) ("we", "us", "our"). By using the site or purchasing a subscription, you enter into an agreement with Steven Timney.

2. Acceptance

By accessing or continuing to use the site you agree to these Terms. If you do not agree, please stop using the site.

3. The service

We provide an interactive online practice question bank aimed at learners preparing for the NEBOSH HSE Certificate in Process Safety Management. The service is an independent study aid and is not affiliated with NEBOSH or the HSE.

4. Accounts

You must provide accurate information, keep your login credentials confidential, and are responsible for activity under your account. You must be of legal age to enter into a contract in your jurisdiction.

5. Acceptable use

You must not:

• Use the site unlawfully or fraudulently, or for spam.
• Infringe our or any third party's intellectual property rights.
• Interfere with the security or integrity of the service (malware, probing, scraping).
• Resell, redistribute, or share access to paid content.
• Reverse engineer, decompile, or circumvent technical limits.

6. Intellectual property

All content, software, branding, and question material on the site is owned by Steven Timney or licensed to us. We grant you a limited, non-exclusive, non-transferable right to use the service for personal study within your active plan.

7. Payments, subscriptions, and refunds

Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders. Paddle provides all customer service enquiries and handles returns. Payment, billing, tax, cancellation, and refund mechanics are governed by the Paddle Buyer Terms. See also our Refund Policy.

8. Service level

We work to keep the service available but do not guarantee uninterrupted or error-free operation. To the fullest extent permitted by law we disclaim all implied warranties, including merchantability and fitness for a particular purpose.

9. Suspension and termination

We may suspend or terminate access for material breach of these Terms, non-payment, security or fraud risk, or repeated or serious policy violations. On termination your right to use the service ends.

10. Liability

To the extent permitted by law, our aggregate liability to you is capped at the fees you paid us in the 12 months preceding the claim. We exclude liability for indirect, consequential, or special damages including loss of profits, data, or goodwill. Nothing in these Terms excludes liability that cannot be excluded by law (including fraud, death, or personal injury caused by negligence).

11. Governing law

These Terms are governed by the laws of England and Wales. Disputes are subject to the exclusive jurisdiction of the courts of England and Wales, unless a mandatory consumer law in your country of residence provides otherwise.

12. Changes

We may update these Terms from time to time. Material changes will be notified in the site or by email where appropriate.

13. Contact

Contact Steven Timney via the support channel on this site.