There's an unwritten protocol governing Presidential photo opportunities with foreign leaders.

The Code aimed to provide a legal framework for slavery, to establish protocol governing the conditions of colonial inhabitants, and to end illegal slave trade.

This commission worked for a few months only, since no agreement on the protocols governing the relevant experimental trials could be struck.

Other autistics, many of them skilled computer programmers, look at the protocols governing exchange between networked machines as models for the sort of structured interchange they are most comfortable with.

A European protocol governing restrictions on emissions of nitrogen oxides (NOx) came into force on Feb. 14.

That is to say, the protocols governing American first coupledom have grown as strict as in any monarchy, and first ladies who figure out how to exploit them can achieve unprecedented levels of power.

Protocol: How Control Exists After Decentralization MIT Press, 2004 (power as embedded in the digital protocols governing networked systems)

One of the protocols governing the reunification of Germany required that the DIN and VDE standards would prevail without exception, so the former East Germany had to conform to the Schuko standard.

I know you're a nonentity, but do you have so few clients that you have no idea of the protocol governing the client-patron bond?

Orfi courts can authorize the bisha'a, but could be overruled by protocols governing blood feuds.