Texans rookies reported for tests Monday, and the rest of the players will be tested Saturday.
Then they will be required to stay at home for two days, before returning for another two days of tests, according to team officials.
Players test on day and five if the prior tests have all been negative.
From there, daily tests will be conducted for at least the first two weeks of training camp.
A team official says the Texans staff worked around the clock for three months to transform the stadium to make it safe for players.
The facility is unrecognizable, the team official says.