There are no clashes between F1 and the remaining two WEC events in China and Bahrain so Hartley is theoretically free if he impresses in Austin.
He can win a second World Endurance Championship with the factory Porsche team if results go his way this weekend in Japan.
His elevation to a drive for Austin is further proof Toro Rosso is unconvinced about its line-up for next season.
Toro Rosso team principal Franz Tost reportedly wants to use the next race as a chance to evaluate a new driver to add to next year's roster with current driver Pierre Gasly remaining a favourite to retain one of the team's cars, but the other now still up in the air.
Hartley, this year's Le Mans 24 Hours victor and a world endurance champion, will add his name to a roll call of Kiwi Formula One drivers that now ends with Mike Thackwell in 1984.
"I want to say a huge thanks to Red Bull and to Porsche", he told the Toro Rosso site.
After Formula One pulled off the deal of the century to allow McLaren to swap its busted Honda engines for Renault ones, Toro Rosso's standout driver Carlos Sainz Jr. will leave the team for Renault early, starting with the United States Grand Prix.
"We are really happy to have him back in our team. With all the racing experience accumulated over the years, we are convinced that he will do a fantastic job for us", he said.
Authorities have said that the October 2017 killings are not connected to the April 2016 slaying of members of the Rhoden family. We are actively searching for 23 year old Aaron Lawson of 15868 SR 93 Pedro Ohio 45659 as a person of interest in this case.
Canadian-born actor Anna Paquin welcomed any men who wish to show their support under the trending hash tag #WomenBoycottTwitter . Not because of hate but because I love this platform and know it can be better.
Go from NY to Canada, or from California to Mexico; it's just like going from Idaho to Texas, from Georgia to Kentucky. We already know that T-Mobile's unlimited plans have limits, just like they do at every other wireless carrier.
In his statement, Cooper said, "Those who work in our prisons do a hard and demanding job that is critical to our safety". According to WVEC, multiple nearby schools were placed on lockdown as a precaution during the attempted escape.
Facebook's CEO, Mark Zuckerberg, has backtracked from calling the idea of Facebook's influence on the election "pretty insane ". Currently, Facebook's eight-member board of directors is all white and 75 per cent male.
Recently, reports had been doing the rounds that Rahul might take over as party president by the end of this month. Over the years, the chorus in favour of Rahul Gandhi as party president had been growing louder.
For its bottom-line boost, the company credited the success of its Galaxy S8 smartphone, along with strong memory-chip sales. Kwon is 65 and has been the face of Samsung in the absence of the company's de facto chief, Lee Jae-yong.
Asked if Arsenal had set a deadline for contract negotiations with the pair to conclude, Wenger replied: "No". He didn't play in the first game, and we lost him in the second game against Azerbaijan at home.
Colonial Trust Advisors acquired a new stake in shares of Wells Fargo & in the 2nd quarter valued at approximately $214,000. Stock buyback programs are usually an indication that the company's management believes its stock is undervalued.
It will be contested by the 12 full members plus the winners of the current ICC World Cricket League Championship. The aim of the test championship is to retain the status of the five-day game amid the rise of T-20 cricket.
Acrospire Investment Management LLC bought a new position in shares of Domino's Pizza in the second quarter valued at $127,000. The stock exchanged hands with 4,868,325 numbers of shares compared to its average daily volume of 1.12M shares.
'Jordan says superteams will create garbage teams'
He promised not to smoke more than one a day, presumably lighting up his other daily five from slightly less premium brands . The whole issue - featuring more Jordan comments sure to get attention - will hit newsstands on October 31.
Southwest Airlines planning flights to Hawaii, company says
Mike Van de Ven, Southwest chief operating officer, said the new Hawaii service "begins the next chapter of Southwest Airlines". The Dallas-based airline made the announcement Wednesday in a joint address by Southwest President Tom Nealon and Hawaii Gov.
Quake in North Korea raises suspicions of weapons test
And now the latest natural disaster to hit the region suggesting the detonations have dramatically destabilised the area. The United States Geological Survey (USGS) measured the quake with at 2.9 magnitude at a depth of 5 km.
Senator Susan Collins Won't Run for Governor of Maine
Had Collins made a decision to run for governor she would have joined a crowded field to replace two-term Republican Gov. King says Collins' decision reflects the senator's work ethic, dedication to serving ME people and "infinite energy".