IEEE Xplore
IEEE Xplore gives access to several collections of codes, including the National Electrical Safety Code and Handbook (NESC) online. Standards and codes are searchable by collection such as "Aerospace Electronics," "Cybersecurity", and "Robotics and Automation",by number, topic,, and ICS code,(International classification for standards). such as "Mechanical Systems & Components, When on the IEEE Xplore site, click on "Browse" at the topic and choose "Standards" from the dropdown menu.