# Mechanical Systems (IBC 2009 Chapter 28) > This chapter establishes the scope and primary code references for the construction, installation, and maintenance of mechanical systems, appliances, and equipment in buildings. - Canonical: https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/mechanical-systems/ ## Direct answer and reference scope Mechanical Systems (IBC 2009 Chapter 28) is presented here as a reference within the IBC 2009 collection for Maryland. This chapter establishes the scope and primary code references for the construction, installation, and maintenance of mechanical systems, appliances, and equipment in buildings. Use the [Maryland Building Codes Administration](https://labor.maryland.gov/labor/build/buildstatecodes.shtml) to confirm the code edition currently adopted for the project, and compare the model text with state amendments, local amendments, effective dates and the permit authority's interpretation. The [ICC code library](https://codes.iccsafe.org/codes) is the model-code publication path. This Harth page is a searchable reference transcription, not an official code publication, legal opinion or confirmation that this edition controls a particular address. Record the project jurisdiction, application date, occupancy, construction type and amendment set before relying on a section. Where this page conflicts with an official publication or the authority having jurisdiction, the official source controls. _Authored and prepared by Harth. Review scope: official verification path added; code text and current local applicability have not been independently reviewed._ _This chapter establishes the scope and primary code references for the construction, installation, and maintenance of mechanical systems, appliances, and equipment in buildings._ ## 2801 — General 2801.1 Scope. Mechanical appliances, equipment and systems shall be constructed, installed and maintained in accordance with the International Mechanical Code and the International Fuel Gas Code. Masonry chimneys, fireplaces and barbecues shall comply with the International Mechanical Code and Chapter 21 of this code. ![Labeled code-chapter diagram: Mechanical Systems (IBC 2009 Chapter 28)](https://efwwel0vyt9vy5so.public.blob.vercel-storage.com/images/building-codes/us-states/maryland/ibc-2009/mechanical-systems/diagram-1344.webp) *This chapter establishes the scope and primary code references for the construction, installation, and maintenance of mechanical systems, appliances, and equ…* ## Frequently asked questions ### Which codes primarily govern mechanical systems under the IBC? Mechanical appliances, equipment, and systems must comply with the International Mechanical Code and the International Fuel Gas Code. ### Where are the specific requirements for masonry chimneys and fireplaces located? Masonry chimneys, fireplaces, and barbecues must comply with both the International Mechanical Code and Chapter 21 of the IBC. --- - Continue in Harth (open this topic in the Harth agent): https://app.harth.build/agent?context=%2Fresources%2Fbuilding-codes%2Fus-states%2Fmaryland%2Fibc-2009%2Fmechanical-systems%2F - View this page in a browser: https://harth.build/resources/building-codes/us-states/maryland/ibc-2009/mechanical-systems/ - All resources for agents: https://harth.build/llms.txt