Bus manufacturer Alexander Dennis has launched a consultation on plans to cut 650 jobs following a "significant fall" in demand for new vehicles in the 海角视频.
The company plans to cut 200 jobs at its site in Guildford, Surrey, 160 in Falkirk, 90 in Scarborough and 200 in support functions across its bases.
Managing director Paul Davies said: "We have no choice but to implement these tough decisions to protect the company's future health.
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"We remain confident that the situation will improve in time, and we are well placed to take advantage when that happens, but right now we have to adjust to our new economic reality.
"We continue to call upon the 海角视频 and Scottish governments to urgently introduce meaningful support to facilitate demand for new buses and coaches, not only to prevent further damage to 海角视频 bus and coach manufacturing that could threaten additional production sites, but to help build back better with a green recovery that delivers cleaner air for our towns and cities."
The company said the job losses were in response to a significant fall in demand for new buses and coaches in the 海角视频 as a result of the coronavirus pandemic.
It said: "The dramatic fall in demand for new buses and coaches as a result of lockdown, social distancing and low passenger numbers has left ADL with no alternative but to adjust its business to the current economic situation.
"Since the announcement on July 27 of a restructuring programme that puts up to 650 jobs at risk across all of the company's 海角视频 facilities, ADL has continued its dialogue with the 海角视频 and Scottish Governments and other stakeholders.
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"However, there remains no immediate visibility of the stimulus funding urgently required to support operators to place orders, making it necessary to begin the formal consultation on the proposed changes.
"ADL remains firmly committed to working with its customers and supporting the bus and coach operating industry, which is battling an unprecedented crisis.
"The restructuring programme is designed to adjust current capacity without compromising the company's ability to respond to a resurgence of demand in the future."
ADL said it intends to transfer chassis production to its Falkirk factory, affecting around 200 employees in manufacturing and operational support roles at Guildford.
Non-manufacturing functions including engineering, test and development and aftermarket will continue to be based at the Guildford site.
Mr Davies said: "The Dennis brand is of huge significance to the company, with its proud history and heritage of automotive innovation dating back to its inception in 1895.
"We will fight hard to protect this legacy and will continue to invest in our chassis product range, which will continue to be engineered in Guildford."
ADL said it was seeking voluntary redundancies to reduce the number of compulsory job losses.