I just reached out to the SEC with a question about registration and was met with this rather abrupt response:
Thank you for contacting the Investment Adviser Regulation Office (IARO) at the Securities and Exchange Commission. The Commission is currently closed and this mailbox is not being monitored at this time. We will review all emails once the Commission re-opens and will reply at that time. If you have an issue or matter that requires emergency attention from IARO, please contact IMemergency@sec.gov or (202) 551-6720 and we will determine whether assistance can be provided. This is an automatically generated response.