engineering letter of guarantee, which is a common method of guarantee in the engineering field, has been widely used in practice. In recent years, with the continuous development of economic globalization and the increasing number of international engineering projects, the use of engineering letters of guarantee has become more frequent and the scope of application has continued to expand. At the same time, the problems of engineering letters of guarantee have gradually emerged, and the disputes arising from them have also increased. Therefore, it is of great significance to study the relevant regulations on engineering letters of guarantee and improve the relevant legal system.

The engineering letter of guarantee is a guarantee method with characteristics of the times. With the continuous development of the economy and the continuous improvement of people's living standards, the construction industry has entered a period of rapid development. The scale of construction projects is getting larger and larger, the investment is getting higher and higher, and the requirements for quality and progress are getting higher and higher. In this context, the engineering letter of guarantee came into being. It is a guarantee method that is different from the traditional guarantee methods such as guarantee and pledge. It has the characteristics of simplicity, convenience, and low cost, and can better meet the needs of modern economic development.

At present, the relevant provisions on engineering letters of guarantee are relatively scattered, mainly including the "Contract Law", the "Guarantee Law", the "Bidding Law", the "Tendering and Bidding Law for Infrastructure Projects", the "Regulations on the Administration of Engineering Letters of Guarantee for Construction Projects", and the "Measures for the Administration of Engineering Letters of Guarantee for Housing Construction". Although these laws and regulations have played a positive role in regulating the issuance and use of engineering letters of guarantee, there are still some problems, such as the lack of a unified legal system, the unclear relationship between laws and regulations, and the lack of relevant provisions in some areas.

First of all, the concept of an engineering letter of guarantee is vague. At present, there is no clear and unified definition of the concept of an engineering letter of guarantee in laws and regulations. The "Regulations on the Administration of Engineering Letters of Guarantee for Construction Projects" only give a brief description of the engineering letter of guarantee, and there is no clear and operable definition. This has led to confusion in the understanding and application of the concept of an engineering letter of guarantee in practice, and even some people confuse it with other similar concepts such as letters of commitment and letters of promise.

Secondly, the legal nature of engineering letters of guarantee is unclear. The current laws and regulations have not clearly defined the legal nature of engineering letters of guarantee, which has led to disputes over the legal nature of engineering letters of guarantee in theory and practice. Some people think that the engineering letter of guarantee is a unilateral or bilateral legal act, while others think that it is a civil legal act or a special contract. The lack of a clear legal nature makes it difficult to determine the applicable law and the resolution of disputes when disputes arise over engineering letters of guarantee.

Thirdly, the scope of application of engineering letters of guarantee needs to be further clarified. At present, the scope of application of engineering letters of guarantee is relatively broad, and there is no clear and unified regulation. The "Regulations on the Administration of Engineering Letters of Guarantee for Construction Projects" stipulate that the scope of application of engineering letters of guarantee includes construction projects and related activities, but the specific content of "related activities" is not clear. In practice, some people think that the scope of application of engineering letters of guarantee should be limited to construction projects, while others believe that it should also include other fields such as engineering consulting and design.

Fourthly, the content and form of engineering letters of guarantee need to be further standardized. At present, the content and form of engineering letters of guarantee are relatively simple, and there is no uniform standard. Some engineering letters of guarantee only contain a simple guarantee statement, while others contain a detailed description of the rights and obligations of the guarantor and the beneficiary. In terms of form, some engineering letters of guarantee are in the form of a letter, while others are in the form of a contract or agreement. The lack of standardization in the content and form of engineering letters of guarantee has led to disputes over the interpretation and application of the content and form of engineering letters of guarantee in practice.

Finally, the supervision and management of engineering letters of guarantee need to be strengthened. At present, the supervision and management of engineering letters of guarantee are relatively weak, and there is a lack of effective supervision and management mechanisms. The "Regulations on the Administration of Engineering Letters of Guarantee for Construction Projects" stipulate that the construction administrative department and its authorized engineering letter of guarantee management institution shall be responsible for the supervision and management of engineering letters of the guarantee, but the specific content of supervision and management is not clear. In practice, there are problems such as the issuance of engineering letters of guarantee without authorization, the abuse of engineering letters of guarantee, and the failure to perform the obligations of the guarantor.

In conclusion, the relevant provisions on engineering letters of guarantee still need to be improved. It is suggested that the relevant departments should strengthen the research on engineering letters of guarantee, clarify the relevant concepts, unify the legal system, and improve the relevant laws and regulations as soon as possible. At the same time, it is necessary to strengthen the publicity and education of engineering letters of guarantee, guide the correct understanding and application of engineering letters of guarantee, and promote the healthy and orderly development of the engineering letter of the guarantee industry. Only in this way can we better play the role of engineering letters of guarantee in practice and effectively protect the legitimate rights and interests of the parties.