• Educate the collector, consumer and retailer as to the properties and benefits of genuine, pure, natural, unaltered sea and beach glass.
• Maintain the value of genuine sea glass and beach glass through education.
• Provide a forum and knowledge base for sea glass enthusiasts to communicate with other individuals who share their passion for genuine sea and beach glass.
• Sponsor sea glass festivals that will benefit sea glass collectors, retailers, and artisans.
• Support the work of protecting and restoring waterways and coastlines around the world, by mobilizing members, making donations and educating the public.
• NASGA Commercial Members agree that they will not create or sell imitation sea or beach glass.

Member Agreement

NASGA members agree that they will do nothing to intentionally alter or enhance the natural color, shape, size, and patina of sea or beach glass in a way that would mislead a consumer.

NASGA members agree to never create or sell imitation sea glass in person or online, including at NASGA festivals, other shows and markets, nor in online shops and social media sites. 

NASGA members agree to leave sea glass in its natural state. Sea and beach glass and regular glass will not be altered in any way to artificially replicate or change the shape, patina, size, or color of genuine sea glass. Members agree to not use any techniques to alter the glass or its appearance, including:

• Grinding
• Acid etching
• Sand blasting
• Tumbling
• Breaking or shaping the glass
• Colorizing
• Mounting on a surface that changes the color of the glass 
• Or any other means

Members agree to present the sea or beach glass in its natural state and make it possible for a knowledgeable consumer to confirm that the glass is genuine. Members will not do the following to sea and beach glass:

• Add resin, glue, or other coating on top of the glass
• Add a patina to the metal surface behind the glass in a jewelry setting

Alteration of the sea or beach glass is allowed when it is clear to the consumer purchasing the piece that the appearance of the glass has been altered. Members can do the following to sea and beach glass:

• Drill the glass
• Paint images on the surface of the glass
• Glue glass on top of a painting, if the original color of the glass is obvious