Aug. 1 through Nov. 26 remains a quiet period, except for six days specified by the college as "evaluation period" days. On these days, the NCAA allows authorized off-campus recruiters to visit a recruit's school to look at the recruit's on-field ability and academic qualifications. They can't make in-person contact with the recruit. One college can visit a particular high school only once during this period. However, official visits can be made during this time.
For example, an institution selects Sept. 2, 9, 16, 23, 30 and Oct. 7 as its evaluation days. On these days (usually Fridays), the institution's staff and coaches will be all over the country evaluating recruits. So on Sept. 2, one of the school's coaches can be at a high school game in Alabama, one at a game in California, one at a game in Missouri, etc.
If an authorized recruiter from the college visits the recruit's high school on Sept. 2, no representative from that college can go back to that high school until Nov. 27. However, when the recruit makes an official visit to the college on Nov. 1, he can meet with the coaches, and his flight, hotel and meals will be paid for. The recruit can only make official visits to other colleges.