You have 30 days from the time when your payment is received to complete the entire recertification process. You may not begin an exam until your site reports have been approved.
Once you begin either Exam A or Exam B, you have only 24 hours to complete that exam.
You must pass Exam A with at least 75% to access Exam B.
Your certificate will be sent via email once exam results are verified.
STI Corrosion Library
Test Methods
- Tank to Soil Potential - sti-P3 Galvanic
- Test for Continuity to sti-P3 Tank
- Current Requirement Test Procedure
- CP System Corrosion Protection Level Test Procedure
- Soil Resistivity Test
- Rectifier Anode Junction Box Current Calculation
- Calibration of Reference Cell
Steel UST Cathodic Protection Testing Seminar
Fundamentals of Corrosion & Cathodic Protection
- Corrosion & Cathodic Protection Theory
- Fundamentals of Electricity
- Faraday's Law
- Understanding Ohm's Law
- Glossary
Regulatory Requirements
- Federal EPA Requirements (40 CFR Part 280)
- EPA Guidance for CP Monitoring Double-walled Tanks
- CP Monitoring of Act-100 and Act-100-U
- PP4 Test Stations
- EPA Guidance for sti-PP4 Test Stations
sti-P3 Tank System
- Installation Instructions
- RP for the Installation of Supplemental Anodes
- Cathodic Protection Testing Procedures for sti-P3 USTs (R051)
