In addition, the client undertakes not to infringe the snow removal contract if circumstances that are not controlled, such as. B extreme weather conditions or national disasters, prevent it from performing snow or ice removal services. This snow removal contract is concluded from [Contract.CreatedDate] and extends over a period of one year. The contract originates from and between [Sender.Company], the contractor and [Client.Name], the customer. The contractor shall issue the contracting authority with a monthly invoice for the services provided. .