40 CFR 60.721(a):
Business machine means a device that uses electronic or mechanical methods to process information, perform calculations, print or copy information, or convert sound into electrical impulses for transmission, such as:
(1) Products classified as typewriters under SIC Code 3572;
(2) Products classified as electronic computing devices under SIC Code 3573;
(3) Products classified as calculating and accounting machines under SIC Code 3574;
(4) Products classified as telephone and telegraph equipment under SIC Code 3661;
(5) Products classified as office machines, not elsewhere classified, under SIC Code 3579; and
(6) Photocopy machines, a subcategory of products classified as photographic equipment under SIC code 3861.
N.H. Admin. Code Env, Env-A, ch. Env-A 1200, app C