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See the Registrar's COVID-19 and Academic Continuity page for information for students, faculty, and staff relevant to classes and academic activities and administration. (updated August 21, 2020)

Chronology of General University Grading System

Current (Effective Summer Quarter 2008-09):

Grade Description
A (+,-) Excellent
B (+,-) Good
C (+,-) Satisfactory
D (+,-) Minimal Pass
NP Not Passed
CR Credit (student-elected satisfactory: A, B, or C equivalent)
S No-option Satisfactory (A, B, or C equivalent)
NC No Credit (unsatisfactory performance, D+ or below equivalent)
I Incomplete
L Pass, letter grade to be reported
N Continuing Course

RP

Repeated Course
GNR Grade Not Reported
W Withdrew
Note: The notation * was changed to GNR (No Grade Reported).

Effective Autumn Quarter 1995-96:

Grade Description

A (+,-)

Excellent

B (+,-)

Good

C (+,-)

Satisfactory

D (+,-)

Minimal Pass

NP

Not Passed

CR

Credit (student-elected satisfactory: A, B, or C equivalent)

S

No-option Satisfactory (A, B, or C equivalent)

NC

No Credit (unsatisfactory performance, D+ or below equivalent)

I

Incomplete

L

Pass, letter grade to be reported

N

Continuing Course

RP

Repeated Course

*

No Grade Reported

W

Withdrew

Note: The grades A, B, and C were redefined, NP and W were added, and “+” was changed to CR.

Autumn 1994-95: RP was introduced to replace the original grade for a course later retaken. The grade of I (incomplete) was changed to automatically lapse to NP or NC after one year.

Effective Autumn Quarter 1989-90:

Grade Description

A

Exceptional Performance

B

Superior Performance

C

Satisfactory Performance

D

Minimal Pass

L

Pass, letter grade to be reported

+

Satisfactory, student elected (A, B, or C)

S

Satisfactory, no option (A, B, or C)

N

Continuing Courses

*

No Grade Reported

I

Incomplete

Note: The P notation has been changed to S (Satisfactory). The lowest acceptable grade for either S or “+” is now C-.

Effective Autumn Quarter 1975-76:

Grade Description

A

Exceptional Performance

B

Superior Performance

C

Satisfactory Performance

D

Minimal Pass

L

Pass, letter grade to be reported

+

Pass, student elected (A, B, C, or D)

P

Pass, no option (A, B, C, or D)

N

Continuing Courses

*

No Grade Reported

I

Incomplete

Note: Under this system, Stanford restored the D grade, defining it as “Minimal Pass.” Pass notations (“+” and P) were redefined to encompass all passing grades, A through D.

Summer Quarter 1972-73: P was introduced to denote pass in a course offered only pass/no credit at the option of the instructor.

Spring Quarter 1971-72: “+” and “-” as grade modifiers were reintroduced for all students.

Autumn Quarter 1971-72: “+” and “-” as grade modifiers were reintroduced for graduate students.

Effective Autumn Quarter 1970-71:

Grade Description

A

Exceptional Performance

B

Superior Performance

C

Satisfactory Performance

L

Pass, letter grade to be reported

+

Pass, student elected (A, B, or C)

N

Continuing Course

*

No Grade Reported

I

Incomplete

Note: The grades A, B, C, and “+” were redefined: D, E, F, W, and “-” were dropped from the grading system. Under the prior system, the University maintained records of all courses a student attempted. But under the revised system, the only courses recorded were those that were successfully completed or for which an I (incomplete) grade was given. The revised system also allowed a student or instructor to request the deletion of an I grade from a student’s record if the student did not meet the requirements of the course within the time limit determined by the instructor. The use of the modifying suffixes “+” and “-” appended to letter grades was discontinued.

Effective Autumn Quarter 1963-64:

Grade Description

A

Excellent

B

Good

C

Satisfactory

D

Minimum Credit

E

Conditioned

F

Failed

N

Continuous Course

W

Unauthorized Withdrawal

I

Incomplete

*

No Grade Reported

+

Passed Without Defining Grade

-

Failed Course Taken Pass/Fail

Prior to Autumn Quarter 1963-64:

Grade Description

A

Excellent

B

Good

C

Fair

D

Barely Passed

E

Conditioned

F

Failed

N

Continuous Course

W

Unauthorized Withdrawal

I

Incomplete

*

No Grade Reported

+

Passed Without Defining Grade

-

Failed Course Taken Pass/Fail