Maryland State law explains the following:

SALE OF FIREPLACE AND STOVE WOOD
Activity: Sale of Fireplace and Stove Wood
Requirements: Comply with regulations governing the use of quality and quantity terms in the representation, advertisement, and sale of fireplace and stove wood
definitions
A Fireplace and Stove wood@ means any kindling, logs, boards, timbers, or other wood, split or unsplit, advertised, offered for sale, or sold as fuel.
A Representation@ means any advertisement, offering, invoice, or the like that pertains to the sale of fireplace or stove wood.
A Species group@ means the commercial name assigned to two or more individual species having similar characteristics, such as oak, hickory, pine, etc.
A Cord@ means the amount of wood which is contained in a space of 128 cubic feet when the wood is ranked and well stowed.
A Ranked and well stowed@ means pieces of wood are placed in a line or row with individual pieces touching and parallel to each other and stacked in a compact manner.
Applicability

The quality and quantity terms used in the representation, advertisement, and sale of fireplace and stove wood must comply with regulations promulgated by MDA.
Requirements
MDA’s fireplace and stove wood regulations require that representations include a declaration of identity that specifies:
— Species group
$ A representation of two or more species groups must indicate, within 10% accuracy, the percentages of each group.
— Whether the wood is unseasoned (green) or dry
Representations as to the quantity of wood, of any type, advertised, offered for sale, or sold for use as fuel may only be made using the following terms:
— Cord
— Fractional parts of a cord
$ Terms such as Aface cord,@ Arack,@ Apile,@ Atruck load,@ or terms of similar import may not be used when advertising, offering for sale, or selling wood for use as fuel.

The seller must present a delivery ticket or sales invoice to the buyer whenever non-packaged fireplace or stove wood is sold, and it must include the following:
— Name and address of vendor
— Name and address of buyer
— Date delivered
— Quantity delivered and quantity upon which price is based
— Price of amount delivered
— Identity in most descriptive terms practicable, including any quality representation

Exceptions

Wood for use as fuel offered for sale in package form in quantities less than 1/8 cord (16 cubic feet) shall display a representation as to quantity in terms cubic feet, including fractions of cubic feet, or cubic meters, including fractions of cubic meters.
References
Agriculture Article ” 11-301 (b) and (c), 11-309
COMAR 15.03.03.05 B (softwood lumber)
COMAR 15.03.03.05 B(4)(b) (minimum dressed sizes of softwood lumber)
COMAR 15.03.03.05 F (fireplace or stove wood)
Additional Information

Maryland Department of Agriculture Weights and Measures Section 50 Harry S. Truman Highway Annapolis, Maryland 21401 (410) 841-5790 maryland state references