Which term describes a complicated and petty procedure?

The term that best describes a complicated and petty procedure is rigmarole. Rigmarole refers to a lengthy, complicated, and often nonsensical set of procedures or actions that can feel tedious and unnecessary. This term captures the essence of a process that is more cumbersome than productive, emphasizing its convoluted nature.

Red tape also relates to bureaucratic procedures but specifically highlights unnecessary regulations and rules that can slow down processes. While protocol and formality refer to established procedures and accepted customs, they do not necessarily imply complexity or pettiness. Rigmarole uniquely encapsulates the idea of an over-complicated and trivial procedural burden, making it the most fitting choice in this context.