| Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|
| 1916 Naval Preparedness Act | Auth. 16(1) | 29 Aug 16 | PL 241-64-1 |
| 1924 | Auth. 24(1) | 18 Dec 24 | PL 297-68-2 |
| 1929 | Auth. 29(1) | 13 Feb 29 | PL 726-70-2 |
| Nationa1 Industrial Recovery Act (NIRA) | Auth. 33(1) | 16 Jun 33 | PL 67-73-1 |
| Prog. | Name | Auth. |
|---|---|---|
| 1 | FY 1931-1934 and NIRA | Various Auth. |
| Prog. | Name | Auth. |
|---|---|---|
| lAx | FY 1935 | Auth. 29(1) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| lAa | Vinson-Trammell Act | Auth. 34(1) | 27 Mar 34 | PL 135-73-2 |
| Prog. | Name | Auth. |
|---|---|---|
| 2x | FY 1936 | Auth. 29(1) |
| 2a | FY 1936 | Auth. 34(1) |
| Prog. | Name | Auth. |
|---|---|---|
| 3 | FY 1937 | Auth. 34(1) |
| Prog. | Name | Auth. |
|---|---|---|
| 4a | FY 1938 | Auth. 34(1) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 4x | Six Auxiliaries | Auth. 37(1) | 30 Jul 37 | PL 226-75-1 |
| Prog. | Name | Auth. |
|---|---|---|
| 5a | FY 1939 | Auth. 34(1) |
| 5x | FY 1939 | Auth. 37(1) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 5aa | - | Auth. 34(1) | - | - |
| 5b | 20% Expansion | Auth. 38(1) | 17 May 38 | PL 528-75-3 |
| 6 | Experimental Program | Auth. 38(1) | " | " |
| Prog. | Name | Auth. |
|---|---|---|
| 7 | FY 1940 | Auth. 38(1) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 8 | Modernize CV 2-3 | Law | 15 Jun 38 | PL 618-75-3 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 8A | Two Motor Vessels | Auth. 40(1) | 25 Jul 39 | PL 212-76-1 |
| Prog. | Name | Auth. |
|---|---|---|
| 9a | FY 1941 | Auth. 34(1) |
| 9b | FY 1941 | Auth: 38(1) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 10 | Modernize SS 167-68, SM 1 | Law | 20 Apr 39 | PL 37-76-1 |
| 11 | Modernize BB 43-46, 48 | Law | 25 Jul 39 | PL 212-76-1 |
| 12 | Modernize BB 33-35 | Law | 14 Jun 40 | PL 629-76-3 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 13x | - | Auth. 16(1) | - | - |
| 13a | - | Auth. 34(1) | - | - |
| 13b | - | Auth. 38(1) | - | - |
| 13c | 11% Expansion | Auth. 41(1) | 14 Jun 40 | PL 629-76-3 |
| 14 | "Anti-Aircraft Defense" | Law | 26 Jun 40 | PL 667-76-3 |
| 15 | 130 Small Vessels-NEF | Auth. 41(4) | 26 Jun 40 | PL 667-76-3 |
| 16 | 159 District Craft | Auth. 41(3) | 26 Jun 40 | PL 667-76-3 |
| 17 | 7 .Auxiliaries-ANV | Auth. 41(2) | 26 Jun 40 | PL 667-76-3 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 18a | - | Auth. 34(1) | - | - |
| 18b | - | Auth. 38(1) | - | - |
| 18c | - | Auth. 41(1) | - | - |
| 18d | 70% Expansion | Auth. 41(5) | 19 Jul 40 | PL 757-76-3 |
| 19 | 24 Auxiliaries-ANV | Auth. 41(6) | 9 Sep 40 | PL 781-76-3 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 20 | 400 Small Craft (Patrol & District) | Auth. 41(7) | 31 Jan 41 | PL 4-77-1 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| LL | Defense Aid (Lend-Lease) | Auth. LL | 27 Mar 41 | PL 23-77-1 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 21 | 12 Auxiliaries-ANV | Auth. 41(8) | 5 Apr 41 | PL 29-77-1 |
| Prog. | Name | Auth. | Appr. |
|---|---|---|---|
| 22 | 72 Patrol Craft | Auth. 41(5) | Appr. 41(6) |
| Prog. | Name | Auth. | Appr. |
|---|---|---|---|
| 23 | 7 DD, 5 SS | Auth. 34(1) | Appr. 42(6) |
| 24 | 32 DD | Auth. 41(5) | Appr. 41(4) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 25 | 550,000t Auxiliaries | Auth. 42(1) | 24 May 41 | PL 72-77-1 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 26 | 400 Light Draft Vessels | Auth. 42(2) | 21 Nov 41 | PL 323-77-1 |
| 27 | 400 Light Draft Vessels | Auth. 42(3) | 17 Dec 41 | PL 353-77-1 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 28 | 800,000t Auxiliaries | Auth. 42(4) | 17 Dec 41 | PL 353-77-1 |
| 29 | 150,000t Combatants (5% Expansion) | Auth. 42(5) | 23 Dec 41 | PL 369-77-1 |
| 1799 | 1799 Vessels Emergency Construction | Auth. 42(6) | 6 Feb 42 | PL 440-77-2 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 30 | 200,000t Combatants | Auth. 42(7) | 13 May 42 | PL 551-77-2 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 31 | 1,900,000t Combatants | Auth. 43(2) | 9 Jul 42 | PL 666-77-2 |
| 32 | 800 Patrol and Mine | Auth. 43(2) | " | " |
| 33 | 200 Small Vessels (Coastal Defense) | Auth. 43(2) | " | " |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 34 | 1,200,000t Auxiliaries | Auth. 43(1) | 9 Jul 42 | PL 665-77-2 |
| Prog. | Name | Auth. | Appr. |
|---|---|---|---|
| 35 | Plan "A" | Auth. 34(1) | Appr. 42(6) |
| 36 | Plan "A" | Auth. 42(7) | Appr. 42(8) |
| 37 | Plan "A" | Auth. 41(5) | Appr. 41(4) |
| 38 | Plan "A" | Auth. 43(2) | Appr. 43(3) |
| 39 | Plan "A" | Auth. 41(S) | Appr. 44(1) |
| 40 | Plan "A" | Auth. 38(1) | Appr. 44(1) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 41 | 1,000,000t Auxiliaries | Auth. 43(4) | 17 Jun 43 | PL 76-78-1 |
| 42 | l,000,000t District and Landing | Auth. 43(3) | 26 May 43 | PL 61-78-1 |
| Prog. | Name |
|---|---|
| 43 | (Unused tonnage) |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 44 | 1,000,000t District and Landing | Auth. 44(1) | 17 Dec 43 | PL 204-78-1 |
| 45 | 2,500,000t Auxiliaries | Auth. 44(2) | 17 Dec 43 | PL 204-78-1 |
| Prog. | Name | Auth. | Auth. Date | Auth. Law |
|---|---|---|---|---|
| 46 | l,000,000t District and Landing | Auth. 44(3) | 31 May 44 | PL 322-78-2 |
| Prog. | Name | Auth. | Appr. |
|---|---|---|---|
| -- | Combatants | Auth. 34(1) | Appr. -- |
| -- | Combatants | Auth. 38(1) | Appr. -- |
| -- | Combatants | Auth. 41(1) | Appr. -- |
| -- | Combatants | Auth. 41(5) | Appr. -- |
| -- | Combatants | Auth. 42(5) | Appr. -- |
| -- | Combatants | Auth. 42(7) | Appr. -- |
| 47 | Combatants | Auth. 43(2) | Appr. 43(3) |
| Prog. | Name |
|---|---|
| BSM | Ships acquired with funds appropriated for Maintenance, Bureau of Ships since 1 July 1939. (Officially "MBS") |