"modified proposal" is a correct and usable phrase in written English.
You would use it when referring to a proposal that has been changed or revised in some way. For example: After considering feedback from the client, we submitted a modified proposal with several changes.
The guild accepted a modified proposal weeks later.
It remains possible that Microsoft will offer a new or modified proposal in the next two days.
For trucks, the modified proposal will charge $6 per axle at peak hours, whether drivers are using cash or E-ZPass.
Frick's modified proposal proved to be extremely popular among baseball executives and writers, and the National Baseball Hall of Fame and Museum opened in 1939.
The modified proposal, if approved, would increase that borrowing period to six years and more than double the amount of borrowing allowed.
In cases where no modified proposal is filed pursuant to paragraph (d) of this section, the Commission will grant the application resulting in the greatest net interference reduction.
It was not immediately clear what affect the modified proposals would have on the five carmakers -- Ferrari, BMW, DaimlerChrysler, Ford and Renault -- who opposed the original changes.
But a commission spokeswoman, Amelia Torres, did note that General Electric and Honeywell could "submit modified proposals after the deadline," which expired at midnight Thursday.
She was then criticised after deciding to support the government's modified proposals, backing the decision of the then deputy prime minister Nick Clegg at the 2012 Lib Dem conference.
(d) Modified proposals curing conflicts between mutually exclusive clusters of applications filed in accordance with paragraphs (c) of this section will be accepted for 60 days following issuance of a public notice identifying such conflicts.
We modified the proposal and in 1980 obtained funding from John Malone of Tele-Communications Inc.
