it varies by school, but amcas gets all your mcat scores. luckily many schools look at your better test. Note, "the better set of scores" refers to your highest score on one administration, not the highest sections over multiple takes.
Albany: the best set of scores
Baylor: most recent scores weighed heavily
Boston: the best set of scores
Case: most recent set of scores
Columbia: most recent scores weighed most heavily
Cornell: the best score
Creighton: the best set of scores
Drexel: the most recent set of scores weighed most heavily
Duke: the most recent set of scores generally considered
E. Carolina: the most recent set of scores generally considered
EVMS: the best set of scores weighed most heavily
Emory: the best set of scores typically weighed most heavily
Finch: the most recent set of scores
George Washington: all sets of scores
Georgetown: all sets of scores
Indiana: the most recent scores
Jefferson: the most recent score
Loma Linda: all sets of scores
Louisiana at New Orleans: the most recent set of scores weighed most heavily
Louisiana at Shreveport: the most recent set of scores weighed most heavily
Loyola: the most recent set of scores weighed most heavily
Marshall: the most recent set of scores weighed most heavily
Medical College of Ohio: the best set of scores weighed most heavily
Medical College of Wisconsin: the best score in each section from last 2 tests
South Carolina: the best set of scores
Meharry: all sets of scores
MSU: the most recent set of scores
Morehouse: the most recent set of scores weighed most heavily
NYMC: the most recent set of scores weighed most heavily
NYU: the best set of scores
NEOUCOM: the most recent set of scores
PSU: all sets of scores
Rush: the most recent set of scores weighed heavily
St. Louis: the best set of scores
Southern Illinois: the most recent set of scores
Stanford: the most recent set of scores
Stony Brook: the best set of scores
Downstate: each scores looked at individually from all tests
Texas A&M: the most recent set of scores
Texas Tech: the most recent set of scores weighed most heavily
Tufts: the best scores
Tulane: the best set of scores
NJMS: all sets of scores
RWJ: all sets of scores with heavy consideration on the most recent scores
USUHS: the best set of scores
Buffalo: the best set of scores
Arizona: the best scores