The US government shutdown entered its fourth week on Wednesday, becoming the second longest in history, with no resolution yet in sight.

WASHINGTON (Reuters) -A U.S. Senate panel approved aviation safety legislation on Tuesday to require the use of advanced aircraft-tracking technology, after the January collision of an American Airlines regional jet and an Army helicopter that killed 67 people.

Fifteen days after the federal government shutdown began, Miami International Airport had so far escaped any impact, Aviation Director Ralph Cutié said last week while warning that during a longer shutdown impacts would surely come.

Federal workers are feeling the effects of the government shutdown, which is approaching its fourth week. Ahead of the shutdown, President Donald Trump warned of possible layoffs. Now, hundreds of employees have been furloughed or laid off as it continues.

The federal government shutdown is being blamed for airline travel delays at major airports. Here's how to check your flight status.

Drone flights would be forbidden over outdoor public gatherings and above 400 feet (122 metres) in most cases. Operators would have to buy drones capable of flying without visual supervision, but, as long as it met spec, each drone leaving a production line would need only testing, not a federal airworthiness certification.

A federal judge has temporarily blocked most layoffs. But federal employees who have already received RIF notices say they’re afraid of what happens next.

On Monday, Atlanta City Council passed Bond's resolution, which allows the city to update its contract with the Atlanta Downtown Improvement District to move the Stitch forward. Back in June, Central Atlanta Progress said the federal government could potentially pull $150 million in grant funding from the project.

The federal government shutdown has already made itself felt across Brevard County's tourism sector, and the situation could get worse as the shutdown drags on into its third week, making it the third-longest in history, a potential blow to a Space Coast economy that relies on government-related travel.