Language
C
C++
Python
PHP
Resources
Lockheed Martin - Joint Strike Fighter AV C++ Coding Standards (2005)
http://www.stroustrup.com/JSF-AV-rules.pdf
NASA - JPL Institutional Coding Standard for the C Programming Language (2009)
http://web.archive.org/web/20190219155254/http://lars-lab.jpl.nasa.gov/JPL_Coding_Standard_C.pdf
NASA - The Power of Ten - Rules for Developing Safety Critical Code (2006)
https://spinroot.com/gerard/pdf/P10.pdf
MISRA - C Coding Guidelines for Critical Systems (2004)
http://caxapa.ru/thumbs/468328/misra-c-2004.pdf