In an NPSL match, as the match went on and became more contentious, the assistant coach as well as several substitutes began standing in the technical area, occasionally making dissenting remarks.
One comment by an assessor was to allow only one team official to stand at a time.
Is there any USSF requirement that players or coaches remain seated?
As a fourth official, can I demand that the players or coaches remain seated?
USSF answer (June 17, 2010)
The competition rules of NPSL do nor require team officials to stand one at a time, nor that they remain seated. The same applies to the published USSF indoor rules, probably because most facilities don’t always even have seats in the benches.
However, if the teams were playing outdoor soccer, the Law does require that only one team official at a time be standing in the technical area.