This article details the various coating systems which are applied on hydrocarbon pipelines now-a-days. It also provides the properties which desired in an effective pipeline coating system and provides a comparative study between FBE, CTE and 3LPE coatings based on those properties. Epoxy pipe coating is a method of coating the inside of pipes, tanks, and other vessels with a layer of epoxy resin. This coating helps to protect the interior surfaces of the pipes from corrosion and chemical damage, as well as improve the flow of fluids through the pipes. Pipe coating is a vital process in the maintenance and construction of pipelines, offering numerous benefits that enhance the durability and efficiency of pipeline systems. Choosing the correct type of coating and application technique ensures optimal performance and protection. In this article we outline how pipe coating works, and how to choose a pipeline coating based on specific needs. We also look at the pipe coating companies providing industrial products and services. Pipelines are protected through the application of both external and internal coating of pipes. Pipeline coating standards, such as ISO 21809, API RP 5L2, and NACE specifications, set the benchmark for quality and durability in the industry. These guidelines dictate the materials, application processes, and testing methods to ensure coatings meet safety and performance criteria. Following are the main types of pipelining coating : It is helpful for wastewater and transportation, which are made mainly of water with a slight amount of solid waste. Depending on the pressure in the pipes and other factors, it can be made of concrete pipes , PVC, cast iron, or clay. Pipelines shall be coated externally by a suitable anti – corrosion coating , supplemented by cathodic protection. Ensure that adequate cathodic protection can be demonstrated at all times, pipelines shall be electrically isolated individually from the plants to which they are connected. Pipe coatings are specialized layers applied to the outer and inner surfaces of pipes to safeguard them from corrosion, abrasion, and other detrimental elements. These coatings act as a barrier, preventing contact between the pipe and its surrounding environment. Pipeline coatings serve a dual purpose: preventing corrosion and enhancing the mechanical durability of the pipeline. By providing a barrier against corrosive elements, coatings significantly extend the lifespan of pipelines, reducing the need for frequent repairs and replacements. Purpose: Pipe coating primarily guards against external threats like corrosion and physical damage, while pipe lining focuses on improving hydraulic performance and preventing internal decay.