Drug Testing Field Guide
Source-backed testing literacy, privacy posture, contact boundaries, and support for the public tools at drugtest.guide.
Drug Test Guide publishes careful, source-backed tools for understanding testing concepts, biomarkers, detection windows, cutoffs, and uncertainty. It is built for orientation, not for predicting a specific lab, court, workplace, medical, treatment, probation, or forensic outcome.
Email [email protected] for bug reports, source corrections, accessibility issues, broken links, and general product feedback.
Do not send private drinking, drug use, medication, monitoring, legal, medical, employment, probation, treatment, custody, or forensic details.
Support the field guide
Drug Test Guide is free to use. Support helps keep it ad-free, current, and careful: source-backed references, model corrections, accessibility fixes, privacy-respecting hosting, and updates when public guidance or research changes.
- Maintaining calculators and references without ads or tracking scripts.
- Reviewing sources when studies, cutoffs, or public guidance change.
- Improving accessibility, mobile layout, reliability, and plain-language explanations.
Contributions are optional support for the public site. They do not include test-result interpretation, legal advice, medical advice, case review, or any promised product or service. Accidental or duplicate card payments can be handled by emailing support.
PayPal
Scan the QR code with PayPal, or open the PayPal.Me support link.
PayPal opens in a new tab. Contributions are optional support for the public site.
Card / Wallet
Scan the QR code, or open the secure card and wallet payment page.
Card and wallet payments are processed by Stripe. The charge should reference ToxGuide Software or Drug Test Guide.
Bitcoin
Scan the QR code with a wallet app, or copy the address.
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