It’s impossible to get very far in the GSA Schedule acquisition process without encountering the acronym “SIN.” Special Item Numbers (SINs) are of critical importance to the GSA, but can be confusing to new contractors. Much of this confusion arises from the relationship between SINs and North American Industry Classification System (NAICS) Codes, which many contractors are already familiar with. Here at Winvale, we receive many questions about SINs, NAICS Codes, and the differences between them—so let’s break that down.

In the world of government contracting, it can sometimes feel like people are speaking a different language, one that’s made up of innumerable incomprehensible acronyms. Two of these that you may have encountered are PSC, which stands for Product and Service Code, and NAICS, which stands for North American Industry Classification System. Despite their differences, these are frequently confused by even seasoned contractors. In this blog, we’ll dive into what these terms mean, the differences between them, and how they can be useful to you.

GSA Multiple Award Schedule (MAS) contracts are a great way to sell to the government—but the process of obtaining one can seem intimidating. Writing a GSA proposal can be tough, especially if you aren’t familiar with the process. In this blog, we’ll share some of our tried-and-true tips for successful GSA proposal writing.