Coding standards are vital for the maintainability of software projects as they establish a uniform approach to writing code. They enhance readability, making it easier for developers to understand each other's work. By following established best practices, teams can avoid common pitfalls, reduce the potential for errors, and facilitate easier debugging and updates. Standardized coding practices also enable smoother collaboration between team members and improve the onboarding process for new developers. Ultimately, adherence to coding standards supports the long-term success and scalability of software projects.