Credit may be given for:

1. a. 

   Spanish-American War, 04/21/1898 - 08/13/1898

2. b. 

   Philippine Insurrection, 02/04/1899 - 04/27/1902

3. c. 

   WW I, 04/06/1917 - 11/11/1918;

4. d. 

   WW II, 09/08/1939 - 06/14/1948;

5. e. 

   06/24/1948 - 12/15/1950, if the veteran involuntarily entered or was drafted into the service during this period unless in MS on 12/31/1946 or was required to involuntarily enter on or after 01/1/1947. RR may grant MS credit for any month not shown above if the MS was involuntary; i.e., the peacetime draft starting 06/24/1948 or any earlier or later draft period or call to duty under any authority;

6. f. 

   Effective 12/1/1988, RRB began granting MS wage credits for periods of voluntary MS 06/15/1948 - 12/15/1950 if the person rendered creditable RR service in the year released from MS or the year after without any intervening non-RR employment.

7. g. 

   National emergency, 12/01/1950 - 09/14/1978 (includes any remainder of a period of service which began during this period);

8. h. 

   Operation Desert Shield/Desert Storm, 08/02/1990 - date yet to be determined (continuing).

9. i. 

   Any month not listed above if the MS was involuntary; i.e., drafted, drafted, recall to active duty, federalizing the National Guard, etc.

All active service in the following branches of the armed forces is covered:

1. a. 

   Land or naval forces of the U.S. Armed Forces including the Coast Guard;

2. b. 

   All reserve components ordered to active duty, including:

   1. 1. 

      Women's Army Auxiliary Corps (WAAC)

   2. 2. 

      Women's Air Force (WAFS)

   3. 3. 

      Women's Army Corps (WACS)

   4. 4. 

      Women's Navy Reserves (WAVES)

   5. 5. 

      Marine Corps Women's Reserves (Marines)

   6. 6. 

      Women's Coast Guard Reserve (SPARS)

RRB can credit MS:

a. before 09/16/1940;

b. that may have ended in a dishonorable discharge;

c. of less than 90 days;

d. credited by another Federal Agency;

e. used by OPM for Civil Service annuity purposes.