Apparatuses, methods, and systems are disclosed for transmitting and/or receiving feedback for sidelink transmissions. One method (1000) includes receiving (1002) information from a network device indicating multiple resources for sidelink transmission and resources for feedback. The method (1000) includes transmitting (1004) sidelink data using the multiple resources for sidelink transmission. The method (1000) includes transmitting (1006) feedback to the network device using the resources for feedback based on the transmission of the sidelink data, wherein transmitting the feedback includes: transmitting only a negative acknowledgment on a first at least one resource of the resources for feedback in response to sidelink feedback not being used for the transmission of the sidelink data; transmitting only a positive acknowledgment or no acknowledgment on a second at least one resource of the resources for feedback in response to the sidelink feedback being used for the transmission of the sidelink data; or a combination thereof.