The phrase "duty applications" refers to tasks or responsibilities that need to be performed or completed. These can be specific roles or actions that someone is obligated or expected to do. Full definition
It works well for light duty applications and home projects where you need an extra pair of hands to hold things steady. (geekwrapped.com)
I also supported the commercial property team with drafting documents and with post completion work, such as land registry and stamp duty applications. (squareonelaw.com)
For years scientists, consumers and concerned companies have been working hard to change the 1970s regulations that ushered in over four decades of heavy duty application of chemicals in furniture. (healthychild.com)