API-Based Covered Tasks

These courses provide an overview of the knowledge, skills, and competencies required to perform specific tasks as required under DOT pipeline operator qualification regulations and are based on the API RP 1161 Covered Tasks.


CT-1.1 Measure of Structure-to-Soil Potentials

Measurement of Structure-to-Soil Potentials explains the knowledge required to perform cathodic protection tests, including cathodic protection systems, test equipment, and the procedure for measuring structure-to-soil potentials. Abnormal operating conditions (AOCs) are also discussed. (15 min)

CT-1.2 Conduct Close Interval Survey

Conduct Close Interval Survey explains the knowledge required prior to conducting a close interval survey, the preparation required before the survey, and the steps to perform the close interval survey, such as attaching test leads and measuring structure-to-soil potentials. Abnormal operating conditions (AOCs) are also discussed. (20 min)

CT-1.4 Inspect and Perform Electrical Test of Bonds

Inspect and Perform Electrical Test of Bonds explains the purpose and types of electrical bonds, knowledge required prior to inspecting and testing bonds, visual inspections, and electrical testing bonds. Abnormal operating conditions (AOCs) are also discussed. (15 min)

CT-1.5 Inspect and Test Electrical Isolation

Inspect and Test Electrical Isolation explains the use of insulating devices to electrically isolate two metal structures, the equipment needed and steps taken for inspecting and testing electrical isolation, and any possible abnormal operating conditions (AOCs) that may be encountered. (15 min)

CT-2.1 Verify and Test Lead Continuity

Verify Test Lead Continuity explains the purpose of test leads, knowledge required prior to performing the task, including how to identify a damaged test lead, and the steps for verifying test lead continuity. Abnormal operating conditions (AOCs) are also discussed. (15 min)

CT-2.4 Install Test Leads by Exothermic Welding Methods

Install Test Leads by Exothermic Welding Methods explains the purpose of installing test leads, the knowledge required prior to performing the exothermic welds, and the steps for performing exothermic welds to install test leads, including surface preparation, weld ignition, and pin brazing. Abnormal operating conditions (AOCs) are also discussed. (20 min)

CT-3.0 Obtain a Voltage and Current Output Reading From a Rectifier to Verify Proper Performance

Obtain a Voltage and Current Output Reading From a Rectifier to Verify Proper Performance reviews the role of a rectifier in cathodic protection and explains the procedure for obtaining voltage and current output readings from a rectifier and using these readings to verify the proper performance of the rectifier. The procedure includes information about measuring voltage, calculating current, validating readings to confirm that the rectifier is operating as expected, and documenting the data. The course also describes how to recognize and react to abnormal operating conditions (AOCs). (15 min)

CT-4.1 Troubleshoot Rectifier

Troubleshoot Rectifier explains the purpose of a rectifier and its components in a cathodic protection system; the knowledge required prior to troubleshooting a rectifier; and the steps for troubleshooting, including measuring voltage output. Abnormal operating conditions (AOCs) are also discussed. (15 min)

CT-4.2 Repair or Replace Defective Rectifier Components

Repair or Replace Defective Rectifier Components reviews the role of a rectifier in cathodic protection and explains the procedure for repairing a rectifier by replacing defective components. The procedure includes information about de-energizing the rectifier before making repairs, re-energizing the rectifier after repairs are complete, verifying the proper operation of the rectifier, and documenting the repairs. The course also describes how to recognize and react to abnormal operating conditions (AOCs). (20 min)

CT-4.3 Adjust Rectifier

Adjustment of Rectifier reviews the role of a rectifier in cathodic protection and explains the procedure for making adjustments to a rectifier based on cathodic protection system requirements. The procedure includes information about identifying which rectifier needs adjustment, determining what adjustment is needed, performing fine and coarse tap setting adjustments, and documenting the adjustments. The course also describes how to recognize and react to abnormal operating conditions (AOCs). (20 min)

CT-5.1 Examine for Mechanical Damage on Buried or Submerged Pipe

Examine for Mechanical Damage on Buried or Submerged Pipe explains the purpose for damage inspection, the skills and knowledge required, including identifying the types of mechanical damage, the procedure for examining the pipe for mechanical damage on buried or submerged pipelines, and abnormal operating conditions (AOCs) that may be encountered while performing the task. (15 min)

CT-5.2 Examine for External Corrosion on Buried or Submerged Pipe

Examine for External Corrosion on Buried or Submerged Pipe explains the purpose for inspection, the required knowledge, including identifying types of external corrosion, and the procedure for examining the pipe for external corrosion on buried or submerged pipelines. Abnormal operating conditions (AOCs) are also discussed. (15 min)

CT-5.3 Inspect the Condition of External Coating on Buried or Submerged Pipe

Inspect the Condition of External Coating on Buried or Submerged Pipe explains the purpose of the inspection of external coating, the knowledge and skills required, the procedure for the inspection, and abnormal operating conditions (AOCs) that may be encountered during the process. (15 min)

CT-7.1 Perform Visual Inspection of Atmospheric Coatings

Visual Inspection of Atmospheric Coatings explains the purpose of the atmospheric coatings inspections, knowledge and skills required, the procedure for the inspection, and any abnormal operating conditions (AOCs) that may be encountered during the process. (15 min)

CT-8.3 Measure Corroded Area

Measure Corroded Area describes various types of corrosion and explains the procedure for measuring corroded areas on steel pipe. The procedure includes information about preparing the pipe surface, creating a paper representation of the pipe surface, overlaying a grid on corroded areas of steel pipe, taking measurements of corroded areas, and documenting findings. The course also describes how to recognize and react to abnormal operating conditions (AOCs). (20 min)

CT-9.5 Repair Shorted Casings

Repair Shorted Casings describes the basic components of casing systems and the types of shorts that may be encountered as well as the procedure for repairing shorted casings. The procedure explains how to inspect for and correct the causes of metallic shorts in pipe casings (including visible contact, missing coating on carrier pipes, and defective isolating spacers) and indicates how to check for and resolve occurrences of electrolytic contact. The course also describes how to recognize and react to abnormal operating conditions (AOCs). (20 min)

CT-9.6 Install Electrical Insulating Device

Install Electrical Insulating Device explains the purpose of installing insulating devices, the knowledge and skills required, the procedures for installing various insulating devices, and any abnormal operating conditions (AOCs) that may be encountered during the process. (40 min)

CT-12.0 Perform Visually Inspection of Internal Pipe Surface

Visually Inspect Internal Pipe Surface illustrates various anomalies that may be discovered while visually inspecting an internal pipe surface. The types of corrosion discussed in the course include pitting, scale, and microbiologically influenced corrosion. The types of mechanical damage described include dents, buckles, and gouges. The course explains the basic steps of the inspection process, including how to document the location of each anomaly. It also describes how to recognize and react to abnormal operating conditions (AOCs). (20 min)

CT-14.1 Locate Line

Locate Line examines the procedure for locating pipelines, including the use of the One-Call Notification System, maps and drawings, visual assessments, location methods, equipment, and verification techniques. Abnormal operating conditions (AOCs) are also discussed. (35 min)

CT-14.2 Install, Inspect, and Maintain Permanent Marker

Install, Inspect, and Maintain Permanent Marker discusses the knowledge and skills necessary to install, inspect, and maintain permanent markers for underground pipelines. Abnormal operating conditions (AOCs) are also discussed. (25 min)

CT-14.5 Install, Inspect, and Maintain Temporary Marker

Install, Inspect, and Maintain Temporary Marker discusses the knowledge and skills necessary to install, inspect, and maintain temporary markers for underground pipelines, including types of markers, the One-Call System, white lining, the APWA Uniform Color Code, and positive response. Abnormal operating conditions (AOCs) are also discussed. (25 min)

CT-15.1 Perform Visual Inspection of Surface Conditions of Right-of-Way

Visually Inspect Surface Conditions of Right-of-Way discusses the steps necessary to visually inspect surface conditions of pipeline rights-of-way, including identification of the right-of-way to be inspected, inspection procedures, notification of personnel, and documentation of observations. Abnormal operating conditions (AOCs) are also discussed. (25 min)

CT-19.5 Adjust Actuator/Operator, Electric

Adjust Actuator/Operator, Electric explains why we need to adjust the actuators/operators; describes the type of adjustments needed such as limit switches, torque switches, and function tests, discusses the procedure for making the adjustments, and lists any abnormal operating conditions (AOCs) that may be encountered while performing the task. (15 min)

CT-19.6 Adjust Actuator/Operator, Pneumatic

Adjust Actuator/Operator, Pneumatic explains why we need to adjust the actuators/operators; discusses the type of adjustments needed such as limit switches, torque switches, mechanical stops, and function tests, describes the procedure for making the adjustments, and lists abnormal operating conditions (AOCs) that may be encountered while performing the task. (15 min)

CT-19.7 Adjust Actuator/Operator, Hydraulic

Adjust Actuator/Operator, Hydraulic explains why we need to adjust the actuators or operators; the type of adjustments needed such as limit switches, torque switches, mechanical stops, and function tests; the procedure for making the adjustments; and any abnormal operating conditions (AOCs) that may be encountered while performing the task. (15 min)

CT-21.1 Repair Valve Actuator/Operator, Pneumatic

Repair Valve Actuator/Operator, Pneumatic explains the general steps for repairing a pneumatic actuator/operator including disassembly, including the inspection of parts, replacement of parts, and reassembly. Abnormal operating conditions (AOCs) that may be encountered while performing the task are also discussed. (15 min)

CT-21.4 Repair Valve Actuator/Operator, Hydraulic

Repair Valve Actuator/Operator, Hydraulic explains the general steps for repairing a hydraulic actuator or operator including disassembly, including the inspection of parts, replacement of parts, and reassembly. Abnormal operating conditions (AOCs) that may be encountered while performing the task are also discussed. (15 min)

CT-21.5 Repair Valve Actuator/Operator, Electric

Repair Valve Actuator/Operator, Electric explains the general steps for repairing an electric actuator or operator, including disassembly, the inspection of parts, the replacement of parts, and reassembly. Abnormal operating conditions (AOCs) that may be encountered while performing the task are also discussed. (15 min)

CT-22.2 Inspect, Test, and Calibrate HVL Tank Pressure Relief Valves

Inspect, Test, and Calibrate HVL Tank Pressure Relief Valves explains why relief valve inspection, testing, and calibration is needed; how to perform a visual inspection; how to test an HVL tank pressure relief valve for functionality and repeatability; and how to calibrate a relief valve before returning it to service. Abnormal operating conditions (AOCs) that may be encountered during the task are also discussed. (15 min)

CT-23.1 Maintain/Repair Relief Valves

Maintain/Repair Relief Valves explains why relief valve maintenance is needed; how to maintain/repair relief valves, including testing, inspection, and calibration; and how to make adjustments. Appropriate notifications and abnormal operating conditions (AOCs) that may be encountered are also discussed. (15 min)

CT-23.2 Inspect, Test, and Calibrate Relief Valves

Inspect, Test, and Calibrate Relief Valves explains why relief valve inspection, testing, and calibration is needed; how to perform a visual inspection; testing a relief valve for functionality and repeatability; and calibration of a relief valve before returning it to service. Abnormal operating conditions (AOCs) that may be encountered during the task are also discussed. (15 min)

CT-24.1 Maintain/Repair Pressure Limiting Devices

Maintain/Repair Pressure Limiting Devices explains the purpose of maintaining and repairing pressure limiting devices, describes the types of pressure limiting devices, explains the procedure for maintenance/repair, and discusses abnormal operating conditions (AOCs) that may be encountered during the task. (15 min)

CT-24.2 Inspect, Test and Calibrate Pressure Limiting Devices

Inspect, Test, and Calibrate Pressure Limiting Devices explains the purpose of inspecting, testing, and calibrating pressure limiting devices; describes the types of pressure limiting devices; explains the procedures for inspecting, testing, and calibrating; and discusses abnormal operating conditions (AOCs) that may be encountered during the task. (20 min)

CT-25.1 Inspect, Test, and Calibrate Pressure Switches

Inspect, Test, and Calibrate Pressure Switches explains the purpose and different functions of pressure switches, the procedure for performing a visual inspection, testing with the proper test media, recalibrating the range and setpoint of a pressure switch, and abnormal operating conditions (AOCs) that may be encountered when performing the task. (15 min)

CT-25.2 Inspect, Test, and Calibrate Pressure Transmitters

Inspect, Test, and Calibrate Pressure Transmitters explains the purpose and different types of pressure transmitters, describes the procedure for performing a visual inspection, testing with the proper test media, discusses how to recalibrate the range of a pressure transmitter, and lists abnormal operating conditions (AOCs) that may be encountered when performing the task. (20 min)

CT-32.0 Observation of Excavation Activities

Observation of Excavation Activities examines the responsibilities of a qualified observer, excavation complexity, observation procedure, potential hazards, and abnormal operating conditions (AOCs) that may be encountered. (30 min)

CT-38.1 Perform Visual Inspection of Pipe and Pipe Components Prior to Installation

Visually Inspect Pipe and Pipe Components Prior to Installation explains the importance of the inspection, lists possible defects on pipe and components, describes the procedure for the inspection, including verification of pipe markings and ratings, and discusses abnormal operating conditions (AOCs) that may be encountered. (15 min)

CT-38.3 Perform Visual Inspection of Welds

Visually Inspect That Welds Meet DOT Requirements explains why welds should receive a visual inspection according to API 1104, the defects that may be found during a visual inspection, and abnormal operating conditions (AOCs) that may be encountered while performing the inspection. (10 min)

CT-39.0 Backfilling a Trench Following Maintenance

Backfilling a Trench Following Maintenance explains the procedure for backfilling a trench, including backfilling in lifts and tamping the backfill material between lifts. It also describes how to document the task performance details and how to recognize and react to abnormal operating conditions (AOCs). (20 min)

CT-40.6 Install and Remove Plugging Machine

Install and Remove Plugging Machine explains the purpose of plugging machines, describes how to install and remove a plugging machine, and lists abnormal operating conditions (AOCs) that may be encountered during the task. (15 min)

CT-43.4 Operate Valves Remotely on a Liquid Pipeline System

Remotely Operate Valves on a Liquid Pipeline System discusses the purpose of operating valves remotely, explains how to operate valves remotely using a SCADA system or similar control system, and lists possible abnormal operating conditions (AOCs) that may be encountered while remotely operating a valve. (15 min)

CT-44.3 Inspect, Test, and Maintain a Flow Computer for Hazardous Liquid Leak Detection

Inspect, Test, and Calibrate Computational Pipeline Monitoring (CPM) Leak Detection System examines how flow meters and other devices interface with flow computers as part of a CPM system designed to detect pipeline leaks. The inspection, testing, and calibration of these systems are discussed, as well as abnormal operating conditions (AOCs) that could be encountered during these procedures. (20 min)

CT-44.5 Prove Flow Meters for Hazardous Liquid Leak Detection

Prove Flow Meters for Hazardous Liquid Leak Detection examines the use of master meters and conventional displacement provers for proving flow meters for hazardous liquid leak detection. Displacement provers that are discussed include unidirectional, bidirectional, and compact meters. The course also examines abnormal operating conditions (AOCs) that may be encountered when proving flow meters for hazardous liquid leak detection. (20 min)

CT-44.6 Maintain Flow Meters for Hazardous Liquid Leak Detection

Maintain Flow Meters for Hazardous Liquid Leak Detection discusses the different types of flow meters including orifice plate, turbine, positive displacement, Coriolis, ultrasonic, magmeter, and vortex. The course also explores steps to take when flow meters require repair and removal. You will also learn how to react to abnormal operating conditions (AOCs) you may encounter when maintaining flow meters. (20 min)

CT-44.7 Inspect, Test, and Maintain Gravitometers/Densitometers for Hazardous Liquid Leak Detection

Inspect, Test, and Maintain Gravitometers/Densitometers for Hazardous Liquid Leak Detection explains qualifications and knowledge required, initial inspection, maintenance, and returning the instruments to service. Abnormal operating conditions (AOCs) are also discussed. (20 min)

CT-44.8 Inspect, Test, and Maintain Temperature Transmitters for Hazardous Liquid Leak Detection

Inspect, Test, and Maintain Temperature Transmitters for Hazardous Liquid Leak Detection examines what to look for when inspecting transmitters, what is involved with transmitter testing, and how temperature transmitters should be maintained. Abnormal operating conditions (AOCs) are also discussed. (25 min)

CT-63.4 Operate Valves Locally on a Liquid Pipeline System

Operate Valves Locally on a Liquid Pipeline System explores the local operation of valves by using tools and also by locally operating actuators. The course includes preparations for the task, impact of pressure changes as a result of local operation, steps for operation, and abnormal operating conditions (AOCs) that may be encountered during the task. (20 min)