The entire document is available at
http://www.e-publishing.af.mil/shared/m ... 6-2903.pdf.
Here is the precedence table with notes.
Figure 4.1. Order of Precedence of Awards and Decorations.
ORDER OF PRECEDENCE OF AWARDS AND DECORATIONS
(See notes 1 - 9.)
1. Medal of Honor
2. Air Force Cross
3. Distinguished Service Cross
4. Navy Cross
5. Defense Distinguished Service Medal
6. Distinguished Service Medal (See note 1.)
7. Silver Star
8. Defense Superior Service Medal
9. Legion of Merit
10. Distinguished Flying Cross
11. Airman's Medal
12. Soldier's Medal
13. Navy-Marine Corps Medal
14. Coast Guard Medal
15. Bronze Star Medal
16. Purple Heart
17. Defense Meritorious Service Medal
18. Meritorious Service Medal
19. Air Medal
20. Aerial Achievement Medal
21. Joint Service Commendation Medal
22. Air Force Commendation Medal
23. Army Commendation Medal
24. Navy Commendation Medal
25. Coast Guard Commendation Medal
26. Joint Service Achievement Medal
27. Air Force Achievement Medal
28. Army Achievement Medal
29. Navy Achievement Medal
30. Combat Action Ribbon (See note 2.)
31. Distinguished/Presidential Unit Citation
32. Navy Presidential Unit Citation
33. Gallant Unit Citation
34. Joint Meritorious Unit Citation
35. Meritorious Unit Award
36. Air Force Outstanding Unit Award
37. Air Force Organizational Excellence Award
38. Prisoner of War Medal
39. Valorous Unit Award
40. Navy Unit Commendation
41. Coast Guard Unit Commendation
42. Meritorious Unit Commendation (Army/Navy/ Coast Guard) (worn in the order earned)
43. Navy “E” Ribbon
44. United States Nonmilitary Decorations (See note 3.)
45. Combat Readiness Medal
46. Air Force Good Conduct Medal
47. Good Conduct Medal
48. Navy Good Conduct Medal
49. Marine Corps Good Conduct Medal
50. Coast Guard Good Conduct Medal
51. Air Reserve Forces Meritorious Service Medal
52. Army Reserve Component Achievement Medal
53. Naval Reserve Meritorious Service
54. Selected Marine Corps Reserve Medal
55. Coast Guard Reserve Good Conduct Medal
56. Outstanding Airman of the Year Ribbon
57. Air Force Recognition Ribbon
58. China Service Medal
59. American Defense Service Medal
60. Women's Army Corps Service Medal
61. WWII Theater campaign Medals (See note 4.)
62. World War II Victory Medal
63. Occupation Medal (Navy/Army) (worn in the Order earned) (See note 5.)
64. Medal for Humane Action
65. National Defense Service Medal
66. Korean Service Medal
67. Antarctica Service Medal
68. Armed Forces Expeditionary Medal
69. Vietnam Service Medal
70. Southwest Asia Service Medal
71. Kosovo Campaign Medal
72. Afghanistan Campaign Medal
73. Iraq Campaign Medal
74.Global War on Terrorism Expeditionary Medal
75. Global War on Terrorism Service Medal
76. Korean Defense Service Medal
77. Armed Forces Service Medal
78. Humanitarian Service Medal
79. Military Outstanding Volunteer Service Medal
80. Air and Space Campaign Medal
81. Air Force Overseas Ribbon (S/L)
82. Army Overseas Ribbon
83. Air Force Expeditionary Service Ribbon
84. Sea Service Deployment Ribbon (Navy and Marine)
85. Coast Guard Special Operations Service
86. Coast Guard Sea Service
87. Air Force Longevity Service Award Ribbon
88. USAF Basic Military Training Instructor Ribbon
89. Air Force Recruiter Ribbon
90. Reserve Medals (Armed Forces/Navy and Marine Corps) (worn in order earned)
91. NCO Professional Military Education Graduate Ribbon
92. Army NCO Professional Development Ribbon
93. USAF BMT Honor Graduate Ribbon
94. Coast Guard Reserve Honor Graduate Ribbon
95. Small Arms Expert Marksmanship Ribbon
96. Navy Pistol Shot Medal (See Note 9)
97. Air Force Training Ribbon
98. Army Service Ribbon
99. Philippine Defense Ribbon
100. Philippine Liberation Ribbon
101. Philippine Independence Ribbon
102. Merchant Marine Combat Bar
103. Merchant Marine War Zone (worn in order earned)
104. Foreign Decorations (See Note 6)
105. Philippine Presidential Unit Citation
106. Republic of Korea Presidential Unit Citation
107. Other Foreign Unit Citations (See note 6.)
108. United Nations ServiceMedal
109. United Nations Medal
110. NATO Medal
111. Multilateral Organization Awards (See note 8.)
112. Republic of Vietnam Campaign Medal
113. Kuwait Liberation Medal (Kingdom of Saudi Arabia)
114. Kuwaiti Liberation Medal (Government of Kuwait)
115. Republic of Korea War Service Medal
116. Foreign Service Medals (See note 7.)
NOTES:
1. Wear the Air Force Distinguished Service Medal (DSM) ahead of a Distinguished Service Medal awarded by the Army, Navy, and Coast Guard.
2. Awarded only by the Navy, Marine Corps and Coast Guard.
3. A few of the decorations awarded by federal agencies are: Medal of Merit, National Security Medal, Presidential Medal of Freedom, Medal of Freedom, Gold and Silver Lifesaving Medals,
NASA Distinguished Service Medal, Public Health Service Decorations (Distinguished Service
Medal, Meritorious Service Medal, and Commendation Medal); US Maritime Service Decorations (Distinguished Service Medal, Meritorious Service Medal, and Mariner’s Medal). Do not wear these decorations unless you wear US military decorations and service medals. If you wear more than one, arrange them in the order of acceptance. If you wear two or more from the same agency, that agency decides the precedence. Ribbons must be the same size as Air Force ribbons. Wear only those decoration ribbons awarded by federal agencies and earned while in military service.
4. The American Campaign Medal, Asiatic-Pacific Campaign Medal, and European-African-Middle Eastern Campaign Medal are World War II Theater Campaign Medals. If authorized more than one, wear them in the order earned.
5. When awarded more than one clasp, wear in the order earned on the suspension ribbon. Do not
wear clasps on the service ribbon.
6. Do not wear these decorations unless you wear other US military decorations and service medals. When authorized more than one, wear them in the order earned. If authorized more than one from the same foreign country, wear them in the order the country prescribes. On special occasions and as a matter of courtesy to a given country, you may wear the decorations of that country ahead of all other foreign decoration
7. Before you wear Foreign Service ribbons, meet conditions in AFI 36-2803. When authorized to wear more than one, wear them in the order earned.
8. Includes ribbons such as: Multinational Force Observers Medal and Inter-American Defense
Board Medal. Wear these ribbons in the order earned and ensure they are the same size as Air
Force ribbons.
9. Only personnel who have served in the U.S. Navy are authorized to wear either the Navy Expert Rifle or Navy Expert Pistol Shot Ribbon/Medal