If you're planning on visiting the Capitol, the House side anyway, better have on a mask. Capital Police memo directs officers to arrest those not in compliance.
https://www.foxnews.com/politics/capitol-police-ordered-arrest-staff-visitors-not-wearing-masksPelosi's office denies any involvement, but given she is in direct control of the Capitol Police I can see that as anything but a big fat lie.
Strange part is that it applied to the House side only. Senate side has not enacted any such measure so you're fine there, at least for now.
Of course, representatives are exempt from arrest and only have to deal with being "reported".
Brad