Supplier Requirements

The products referenced on a TwinStar Purchase Order must be manufactured and tested using approved procedures, processes, qualified personnel, and calibrated test equipment.

TwinStar prefers that Suppliers have an ISO 9001 quality management system; however, TwinStar can approve a Supplier’s existing quality management system.

If the manufacturer’s part number and/or description given in the Purchase Order do not match the Supplier’s component, the Supplier must immediately notify TwinStar.

Custom specifications/requirements will be listed on the Purchase Order; or sent as an addendum to the Purchase Order. Custom requirements include, but are not limited to: Revision status, design, verification requirements, process requirements, inspection instructions, test requirements, use of statistical techniques for product acceptance, critical items, key characteristics, technical data; test specimens for inspection/verification, investigation or auditing.

As applicable, TwinStar will communicate the following requirements to Suppliers:

  1. The processes, products, and services to be provided including the identification of relevant technical data (e.g., specifications, drawings, process requirements, work instructions);
  2. The approval of:
  3. Products and services;
  4. Methods, processes, and equipment; and
  5. The release of products and services;
  6. Competence, including any required qualification of persons;
  7. The Supplier’s interactions with TwinStar;
  8. Control and monitoring of the Supplier’s performance to be applied by TwinStar;
  9. Verification or validation activities that TwinStar, or its Customer, intends to perform at the Supplier’s premises;
  10. Design and development control;
  11. Special requirements, critical items, or key characteristics;
  12. Test, inspection, and verification (including production process verification);
  13. The use of statistical techniques for product acceptance and related instructions for acceptance by TwinStar;
  14. Suppliers need to:

− Implement a quality management system;

− Prevent the use of counterfeit parts (see below);

− Use Customer-designated or approved Suppliers, including process sources (e.g., special processes);

− Notify TwinStar of nonconforming processes, products, or services and obtain approval for their disposition;

− Notify TwinStar of changes to processes, products, or services, including changes of their Suppliers or location of manufacture, and obtain TwinStar’s approval;

− Flow down to Suppliers applicable requirements including Customer requirements (The Supplier must flow down all applicable requirements and key characteristics to sub-tier Suppliers using their own purchasing documentation);

− Provide test specimens for design approval, inspection/verification, investigation, or auditing;

− Retain all documented information for a minimum of twenty years, unless an alternate retention period is agreed upon. Note: Documented information may be returned to TwinStar or deleted and/or destroyed at Supplier’s location at the end of the retention period.

Right of access must be granted to TwinStar, TwinStar’s Customers, and regulatory authorities to applicable areas of facilities and to applicable documented information, at any level of the supply chain.

Supplier(s) must ensure their personnel are aware of:

− Their contribution to product or service conformity;

− Their contribution to product safety;

− The importance of ethical behavior.


Prevention of Counterfeit Parts (8.1.4)

TwinStar and TwinStar’s Suppliers shall plan, implement, and control processes, appropriate to TwinStar and the product, for the prevention of counterfeit or suspect counterfeit part use and their inclusion in product(s) delivered to the Customer.

NOTE: Counterfeit part prevention processes should consider:

− Training of appropriate persons in the awareness and prevention of counterfeit parts;

− Application of a parts obsolescence monitoring program;

− Controls for acquiring externally provided product from original or authorized manufacturers, authorized distributors, or other approved sources;

− Requirements for assuring traceability of parts and components to their original or authorized manufacturers;

− Verification and test methodologies to detect counterfeit parts;

− Monitoring of counterfeit parts reporting from external sources;

− Quarantine and reporting of suspect or detected counterfeit parts.


TwinStar Suppliers must meet TwinStar’s requirements; and the statutory and regulatory requirements related to the product.


TwinStar will ensure the adequacy of Purchase Order requirements prior to communication with our Suppliers.

Governing Law and Jurisdiction:

All agreements, both verbal and documented, with TwinStar’s Suppliers shall be governed by and construed in accordance with the laws of Florida (without regard to its conflict of law principles). Any action relating to any agreement shall be instituted and prosecuted in the courts of Florida. The parties consent to the jurisdiction of such courts and extraterritorial service of process.

CFR: 252.225-7014


CFR: 252.204-7012

RoHS/REACH Compliance

Call now to speak with a Sales Engineer (727) 847-2300

TwinStar Optics, Coatings & Crystals
6741 Commerce Ave • Port Richey, Florida 34668
Phone: 727.847.2300 • Fax: 727.847.2304