| FL41987 | Custom Window Systems Inc. | WindowsDouble Hung | ReadyFL41987-R5: Approved | No |
| FL41990 | Custom Window Systems Inc. | WindowsSingle Hung | ReadyFL41990-R4: Approved | No |
| FL42003 | Custom Window Systems Inc. | WindowsCasement | ReadyFL42003-R2: Approved | No |
| FL42005 | Custom Window Systems Inc. | WindowsProjected | ReadyFL42005-R2: Approved | No |
| FL42007 | Custom Window Systems Inc. | WindowsFixed | ReadyFL42007-R2: Approved | No |
| FL41835 | Drutex S.A. | WindowsFixed | ReadyFL41835-R3: Approved | Yes |
| FL41836 | Drutex S.A. | WindowsDual Action | ReadyFL41836-R2: Approved | Yes |
| FL41837 | Drutex S.A. | WindowsCasement | ReadyFL41837-R3: Approved | Yes |
| FL46726 | Drutex S.A. | WindowsDual Action | ReadyFL46726-R1: Approved | Yes |
| FL46727 | Drutex S.A. | WindowsFixed | ReadyFL46727-R1: Approved | Yes |
| FL46728 | Drutex S.A. | WindowsDual Action | ReadyFL46728-R1: Approved | Yes |
| FL47928 | Drutex S.A. | WindowsDual Action | ReadyFL47928-R1: Approved | Yes |
| FL48010 | Drutex S.A. | WindowsFixed | ReadyFL48010-R1: Approved | Yes |
| FL48218 | Drutex S.A. | WindowsDual Action | ReadyFL48218-R1: Approved | No |
| FL21461 | E.S. Windows, Inc. | WindowsFixed | ReadyFL21461-R8: Approved | Yes |
| FL21557 | E.S. Windows, Inc. | WindowsHorizontal Slider | ReadyFL21557-R7: Approved | Yes |
| FL22250 | E.S. Windows, Inc. | WindowsSingle Hung | ReadyFL22250-R6: Approved | Yes |
| FL22266 | E.S. Windows, Inc. | WindowsProjected | ReadyFL22266-R8: Approved | Yes |
| FL39086 | E.S. Windows, Inc. | WindowsMullions | ReadyFL39086-R5: Approved | Yes |
| FL40520 | E.S. Windows, Inc. | WindowsFixed | ReadyFL40520-R6: Approved | Yes |
| FL40521 | E.S. Windows, Inc. | WindowsCasement | ReadyFL40521-R7: Approved | Yes |
| FL40522 | E.S. Windows, Inc. | WindowsAwning | ReadyFL40522-R6: Approved | Yes |
| FL41000 | E.S. Windows, Inc. | WindowsCasement | ReadyFL41000-R2: Approved | Yes |
| FL42159 | E.S. Windows, Inc. | WindowsSingle Hung | ReadyFL42159-R1: Approved | Yes |
| FL46884 | E.S. Windows, Inc. | WindowsSingle Hung | ReadyFL46884-R2: Approved | Yes |
| FL46986 | E.S. Windows, Inc. | WindowsFixed | ReadyFL46986-R1: Approved | Yes |
| FL46997 | E.S. Windows, Inc. | WindowsHorizontal Slider | ReadyFL46997-R1: Approved | Yes |
| FL47067 | E.S. Windows, Inc. | WindowsHorizontal Slider | ReadyFL47067-R2: Approved | Yes |
| FL47085 | E.S. Windows, Inc. | WindowsHorizontal Slider | ReadyFL47085-R1: Approved | Yes |
| FL15952 | EFCO Corporation | WindowsFixed | ReadyFL15952-R6: Approved | No |
| FL15953 | EFCO Corporation | WindowsProjected | ReadyFL15953-R8: Approved | No |
| FL47788 | EFCO Corporation | WindowsCasement | ReadyFL47788-R1: Approved | No |
| FL14632 | Eastern Architectural Systems | WindowsMullions | ReadyFL14632-R8: Approved | No |
| FL16804 | Eastern Architectural Systems | WindowsHorizontal Slider | ReadyFL16804-R12: Approved | Yes |
| FL17288 | Eastern Architectural Systems | WindowsMullions | ReadyFL17288-R5: Approved | No |
| FL17472 | Eastern Architectural Systems | WindowsMullions | ReadyFL17472-R10: Approved | Yes |
| FL37968 | Eastern Architectural Systems | WindowsDouble Hung | ReadyFL37968-R2: Approved | No |
| FL11020 | Elite Aluminum Corporation | WindowsHorizontal Slider | ReadyFL11020-R6: Approved | Yes |
| FL47335 | Euroline Steel Windows & Doors | WindowsCasement | ReadyFL47335-R3: Approved | Yes |
| FL47336 | Euroline Steel Windows & Doors | WindowsFixed | ReadyFL47336-R3: Approved | Yes |
| FL47873 | Euroline Steel Windows & Doors | WindowsMullions | ReadyFL47873-R2: Approved | No |
| FL12295 | Four Seasons Solar Products LLC | WindowsHorizontal Slider | ReadyFL12295-R8: Approved | Yes |
| FL15202 | Four Seasons Solar Products LLC | WindowsFixed | ReadyFL15202-R8: Approved | Yes |
| FL36959 | Four Seasons Solar Products LLC | WindowsFixed | ReadyFL36959-R2: Approved | No |
| FL37818 | Four Seasons Solar Products LLC | WindowsHorizontal Slider | ReadyFL37818-R3: Approved | No |
| FL35048 | Graham Architectural Products | WindowsFixed | ReadyFL35048-R1: Approved | No |
| FL14148 | Hopes Windows, Inc. | WindowsFixed | ReadyFL14148-R11: Approved | Yes |
| FL14150 | Hopes Windows, Inc. | WindowsFixed | ReadyFL14150-R10: Approved | Yes |
| FL14473 | Hopes Windows, Inc. | WindowsProjected | ReadyFL14473-R9: Approved | Yes |
| FL14474 | Hopes Windows, Inc. | WindowsCasement | ReadyFL14474-R10: Approved | Yes |