1. Foreign Worker Declarations: Required when the contractor employs posted workers or foreign nationals, detailing compliance with relevant regulations

2. Subcontractor Information: Required when the contractor uses subcontractors, listing all subcontractors and affirming their compliance

3. Professional Qualifications: Required for specialized work requiring specific certifications or qualifications under Swiss law

4. Payment Status: Optional section declaring current status of payments to suppliers and subcontractors

5. Environmental Compliance: Required for projects with specific environmental requirements or impacts

6. Safety Protocols: Required for high-risk projects or when specifically requested by the client

7. Quality Assurance: Optional section for projects requiring specific quality standards or certifications

1. Business Registration Documents: Copies of relevant business registrations and permits

2. Insurance Certificates: Copies of current insurance policies and certificates

3. Social Security Confirmation: Recent confirmation of social security compliance from authorities

4. Tax Compliance Certificates: Recent tax compliance certificates from relevant authorities

5. Professional Licenses: Copies of relevant professional licenses and certifications

6. Employee List: List of employees working on the project with relevant work permits if applicable

7. Payment Confirmations: Recent confirmations of payment status for social security and insurance obligations