National Institutes of Health - A Federal agency whose mission is to improve the health of the people of the United States. NIH is a part of the Public Health Service, which is part of the U.S. Department of Health and Human Services.
The NIH Common Fund supports cross-cutting, trans-NIH programs, including those referred to as NIH Roadmap programs. See The NIH Common Fund.
Competing applications are applications for a new, renewal, or resubmission research project grants(RPG), including R01s, R21s, and related mechanisms, that require competitive peer review
When multiple PD/PIs are designated, NIH requires that the applicant organization identify one of the PD/PIs as the Contact PD/PI to serve as a primary point of contact. Serving as Contact PD/PI confers no special authorities or responsibilities within the project team. The Contact PD/PI must meet all eligibility requirements for PD/PI status. However, as with the single PD/PI model, if the Contact PD/PI is not an employee, the applicant organization must have a formal written agreement with the Contact PD/PI that specifies an official relationship between the parties. (See NIH Grants Policy Statement: 9 Multiple Program director/Principal Investigator Applications and Awards)
At the NIH, there are at least three, and sometimes four, council rounds each fiscal year: October, January, May, and sometimes August. Application receipt dates, initial review dates, and council review dates all fall within one of these council rounds.