It appears though that they told the company they could not assure safety if drilling continued, which may amount to the same thing.

Both ends of the runway now contain facilities to guide night landing and better assure safety in bad weather conditions.

Current toy safety standards focus on design principles and rely on batch testing of samples to assure safety.

The determined attack of a parent crane often assures safety from predators, but occasional losses to predation are inevitable.

Quality of care or quality of service was defined in terms of organizational processes, with particular emphases on assuring safety, health, and security.