履約保證金之存在，是公共工程得已被順利履行之因素之一，然履約保證制度中，對於連帶保證廠商本身之權利及義務，尚無詳細具體之規範，以致於原工程契約之履約廠商不能繼續履約，進而業主通知連帶保證廠商進場施作後，其地位究竟為何，完工後可否請求該契約之履約保證金等問題皆有待釐清，實務上亦迭生爭議。 本論文除了第一章緒論外，第二章是針對履約擔保制度中之擔保概念、及其與其他相似概念之區辨、履約保證制度之提出方式、類型，以及履約擔保制度於法律上所擔保之範圍進行通盤性之概念說明。於第三章部分，則係就工程履約保證金之性質進行分析，詳列我國目前學說及實務對於履約保證金之見解。第四章則係鑑於第三章彙整、歸納之結果，就押標金保證金暨其他擔保作業辦法公共工程委員會及內政部營建署訂定之採購契約範本，以及高速公路局之一般條款作為實務分析之依附對象，以涵攝、分析履約保證金之性質。第五章則就連帶保證廠商請求返還原契約履約廠商所提出履約保證金之相關爭議，進行討論，並彙整學說、實務見解以提出問題解答。 The utilization of the performance bond is one of the driving forces to smooth completion of public construction projects. The drawback of this legal instrument is that the regulation with regard to joint-and-several guarantee suppliers’ rights and obligations is not clearly addressed by the performance guarantee regime. This uncertainty often leads to a highly disputed issue in practice whether the developers can claim for the return of the performance bond when developers must call joint-and-several guarantee suppliers to carry out the performance because the original contract supplier fails to do so. In such situations, the roles responsibilities between the joint-and-several guarantee and the original suppliers become unclear and this thus increases the likelihood for legal disputes. In this thesis,
Chapter 1 is the introduction. Chapter 2 attempts to delineate the concept of guarantee in the performance guarantee regime and other similar concepts and gives an overall explanation of the concepts of initiation, types and legal scope of the performance guarantee regime. Chapter 3 analyzes the nature of construction of performance bond and reviews in detailed current discourse the performance bond in academia and legal practice in Taiwan. Chapter 4 applies (1) the analyses and literature review of Chapter 3 (2) bid bond, as another form of guarantee, (3) the Procurement Contract Template designed by the Public Construction Commission and Construction and Planning Agency Ministry of the Interior, and (4) the regulation of the Freeway Bureau as model contracts to the analyses of the nature of performance bond. (Item 2~3 are analyzed as examples of professional practices)Chapter 5 discusses the disputes of joint-and-several suppliers’ claims for return of performance bonds from the original contractors, integrates views from academia and legal practice and offers preliminary solutions to these issues.