Heathrow: Grayling to confirm final plan for third runway.

A passenger plane prepares to land at Heathrow,
the busiest airport in the UK and the third busiest in the world.
Photograph: Getty

Chris Grayling is to confirm the government’s final plans for a third runway at Heathrow as the Tories prepare to impose a three-line whip in favour and Labour considers whether to remove its backing for the project.

The transport secretary will set out his proposals for the expansion to senior colleagues on the cabinet’s economic subcommittee on Tuesday morning, before the decision goes to the full cabinet for approval.

He is then expected to make a statement to MPs, during which he will warn that there is no alternative option if they block the third runway, as he outlines the national policy statement detailing the noise, air quality and cost requirements.

The Guardian understands the government is considering whipping its MPs on the vote, which will follow within 21 sitting days of parliament, although Whitehall insiders suggested it would be sooner to avoid any rebellion gathering momentum.

By Pippa Crerar.

Full story at Yahoo News.