The following persons are not weighmasters: (

a) Retailers weighing, measuring, or counting commodities for sale by them in retail stores in the presence of, and directly to, consumers. (

b) Except for persons subject to

Section 12730, producers of agricultural commodities or livestock, who weigh commodities produced or purchased by them or by their producer neighbors, when no charge is made for the weighing, or when no signed or initialed statement or memorandum is issued of the weight upon which a purchase or sale of the commodity is based. (

c) Common carriers issuing bills of lading on which are recorded, for the purpose of computing transportation charges, the weights of commodities offered for transportation, including carriers of household goods when transporting shipments weighing less than 1,000 pounds. (

d) Milk samplers and weighers licensed pursuant to

Article 8 (commencing with

Section 35161) of

Chapter of Part of Division of the Food and Agricultural Code, when performing the duties for which they are licensed. (

e) Persons who measure the amount of oil, gas, or other fuels for purposes of royalty computation and payment, or other operations of fuel and oil companies and their retail outlets. (

f) Newspaper publishers weighing or counting newspapers for sale to dealers or distributors. (

g) Textile maintenance establishments weighing, counting, or measuring any articles in connection with the business of those establishments. (

h) County sanitation districts operating pursuant to

Chapter 3 (commencing with

Section 4700) of Part of Division of the Health and Safety Code, garbage and refuse disposal districts operating pursuant to

Chapter 2 (commencing with

Section 49100) of Part of Division of the Public Resources Code, and solid waste facilities, as defined in

Section of the Public Resources Code. (

i) Persons who purchase scrap metal or salvage materials pursuant to a nonprofit recycling program, or recycling centers certified pursuant to Division 12.1 (commencing with

Section 14500) of the Public Resources Code that purchase empty beverage containers from the public for recycling. (

j) Pest control operators licensed pursuant to

Chapter 4 (commencing with

Section 11701) of Division of the Food and Agricultural Code. (

k) Retailers, or recycling centers established solely for the redemption of empty beverage containers, as that phrase is defined in

Section of the Public Resources Code, who are weighing, measuring, or counting salvage or returnable materials for purchase or redemption by them in retail stores, or, in the case of recycling centers, on the retail store premises or on a parking lot immediately adjacent to a retail store that is used for the purpose of parking by the store customers, directly from and in the presence of the seller. “Retailer” means an entity that derives percent or more of its income from the sale of small quantities of food or nonfood items, or both, directly to consumers. “Salvage materials” means used paper products and used containers made of aluminum, tin, glass, or plastic. (

l) Any log scaler who performs log scaling functions, except weighing, as defined in the United States Forest Service Handbook, Supplement No. 4 of March 1987. (

m) Pawnbrokers licensed pursuant to

Chapter 3 (commencing with

Section 21300) of Division of the Financial Code, and secondhand dealers licensed pursuant to

Article 4 (commencing with

Section 21625) of

Chapter of Division 8, when the pawnbroker or secondhand dealer weighs property that it acquires and reports the acquisition of the property pursuant to

Section of the Financial Code or

Article 4 (commencing with

Section 21625) of

Chapter of Division 8, respectively. (

n) Facilities that handle medical waste and that report net weights, and not estimates, to the generator of the medical waste and the State Department of Public Health in accordance with the Medical Waste Management Act (Part 14 (commencing with

Section 117600) of Division of the Health and Safety Code). (

o) This

section shall become operative on January 1, 2018.