Chamberlain made his 24th start of the season against the Rangers on Tuesday after eight days off, and Girardi said the plan is to continue to give the 23-year-old days off whenever possible.
The Yanks' skipper also refuted any ideas about sending Chamberlain, who was lights-out in 30 relief appearances in 2008, back to the bullpen.
"We have him scheduled starting for the rest of the season," Girard said. "At times, he will go on extra rest."
While Girardi wouldn't get specific in regards to an innings limit for Chamberlain, the Yankees have made it clear in the past that they would prefer to keep the young right-hander at around 160 innings. Chamberlain tossed 100 1/3 innings as a rookie last season, making 12 starts in between two separate stints in the bullpen.
He entered Tuesday's start 8-3 with a 3.98 ERA, and despite past struggles against the Rangers -- he holds a career 7.11 ERA -- Girardi said his rested young star will not be on a special pitch count.
In his first six starts following the All-Star break, Chamberlain went 4-1 with a 3.35 ERA, holding opponents to an American League-best .193 average.
The rest of the Yankees' rotation was slightly shuffled for the front-end of the series against the White Sox, with CC Sabathia pitching on Friday and Sergio Mitre on Saturday.
Brittany Ghiroli is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.