The transportation industry needs custom rubber products that provide long service life and withstand demanding conditions. The aerospace, rail, and mass transit industries also need rubber parts that support passenger safety and comply with government regulations and original equipment manufacturer (OEM) standards for flame, smoke, and toxicity (FST). The NFPA 130 is the standard for fixed guideway and passenger rail systems. This is the standard the majority of manufacturers in the USA are adapting to The European standard (EN45545-2) has similar requirements, and it is important to verify which standard is being applied to a particular project. There may be additional testing requirements needed, and the most common testing requirements are listed below.