Dept. of State DOS solicitations generally limit the number of applications that may go forward in response to a specific solicitation. 
Prospective applicants from the UI who wish to apply to a DOS program that limits the number of applications allowed per institution must refer to the UI Limited Submissions guidelines at   https://uiowa.infoready4.com/#competitionDetail/1809264 

Dept of State Public Diplomacy with:

U.S. Embassy San Jose PD Annual Program Statement
PD-001-FY2022
Grants.gov  https://www.grants.gov/web/grants/view-opportunity.html?oppId=337748
UIowa Internal Deadline June 16, 2022.
Closing date for applications  July 15, 2022 

U.S. Embassy Monrovia PAS Annual Program Statement
PAS-MON-FY22-01
Grants.gov  https://www.grants.gov/web/grants/view-opportunity.html?oppId=337759
UIowa Internal Deadline June 16, 2022.
Closing date for applications  July 15, 2022 

U.S. Mission to Lesotho U.S. Embassy Maseru PAS Annual Program Statement
AF-MASFY22-01
Grants.gov  https://www.grants.gov/web/grants/view-opportunity.html?oppId=337834
UIowa Internal Deadline March 8, 2022.
Closing date for applications  April 8, 2022 

U.S. Mission to Mauritius U.S. Embassy Port Louis, Public Affairs Sections (PAS) Annual Program Statement
PAS-PORTLOUIS-FY22-01
Grants.gov  https://www.grants.gov/web/grants/view-opportunity.html?oppId=337966
UIowa Internal Deadline January 10, 2023.
Closing date for applications  Feb. 10, 2023

Democratic Republic of Congo - U.S. Mission in Kinshasa Public Diplomacy Annual Program Statement (FY22)
AF-DRC-FY22-02
Grants.gov  https://www.grants.gov/web/grants/view-opportunity.html?oppId=337935
UI Internal deadline August 30, 2022
Closing date Sept. 30, 2022  Submitted proposals will be reviewed on a quarterly basis until the end of the FY22