The responsibilities of a pipeline welding inspector are to ensure compliance with all safety standards and regulations during the construction of a gas or water pipeline. Your duties include monitoring compliance for the activities involved with laying and welding pipes and the maintenance of the finished product. You review plans, inspect welding calibrations, look over materials and welding equipment, monitor heating values, document findings, file reports, and test systems before approving. You assist with pre-welding by checking the environment and confirming cutting methods, joint positions, and welder settings. A pipeline welding inspector is responsible for approving buildings and pipelines for public use.