"regardless of risk" is correct and usable in written English.
You can use it when you are talking about something that is being done even though there is some risk involved. For example: "We decided to proceed with the project regardless of risk."
All women, regardless of risk, should focus on preventing diabetes.
Banks lent regardless of risk or business viability.
Chest physiotherapy is indicated in all patients regardless of risk factor profile.
America prides itself on civil liberty, and adults can do pretty much anything to their bodies, regardless of risk.
But if the sport of boxing is one in which fighters are granted licenes regardless of risk, behaviour and history, then a potentially grave error is being made.
And, by writing community rating and universal access into law, Congress will effectively be committing itself to the idea that health care, regardless of risk, is a right.
So if you want to make health insurance available to everyone, regardless of risk, the most sensible solution would be to expand Medicare to everyone.
Congress, for example, has a programme that guarantees homeland-security grants to each state government regardless of risk.
Americans would thus enjoy freedom of choice, but insurers would not: they would not be allowed to turn down individuals for any reason, regardless of risk.
But we know no human is infallible, no human is perfect and mistakes are still made regardless of risk assessment, precise planning and implemented health and safety measures.
For the last year, the names of all those in Connecticut have been available on the Internet, regardless of risk they pose, said the state's attorney general, Richard Blumenthal.
