Chris Brown -- Forget L.A. ... Virginia Jail Rules!

Chris Brown just checked into the "Four Seasons" of jails ... and good news/bad news -- he gets to shower as much as he wants!

Chris arrived in Washington, D.C. after a 5-day trek from California courtesy of Con-Air.

An administrator at Northern Neck Regional Jail in Virginia confirms Chris is currently an inmate -- and he's quick to add Chris isn't getting special treatment.

Chris has been placed in limited general population with no restrictions -- meaning he gets to enjoy all the amenities of the facility, including:

-- Daily showers
-- TV
-- Library
-- Telephone
-- Exercise
-- Meals in the cafeteria

It beats L.A. jail by a country mile ... where he was locked down in solitary 23 hours a day.

The downside ... besides group showers -- he circulates among the other inmates.

Hopefully there's no Rihanna fans in the slammer.