No, they did not tell me where in the FAR. They said that the Travel and ODCs couldn't be defined beforehand so they had to be set as a labor-hour clin with a NTE limit. I've managed several similar contracts and have never seen this. They said they had to make it a labor-hour and FFP hybrid because there were three CLINs that couldn't be defined with price beforehand and these had to be set this way pursuant to the FAR. The 3 CLINs are: Travel, ODC and Surge projects.
Like I said, in the past these were all defined within the FFP with a NTE limit.