

Press release
Oakland–Cal/Osha has clarified his guidelines for the prevention of lead exposure to the construction industry with regard to the requirements of employers to protect workers who carry out dry grinding blinds.
Cal/Osha's changed control standards for the construction industry (California Code of Title 8 Section 1532.1) came into force on January 1, 2025. Sub -section (D) The Ordinance requires that employer carry out exposure reviews for employees who may be exposed to the establishment of the workplace in order to determine the actual exposure of their employees. This includes employees who carry out dry grinding blinds. Until the employer carries out the evaluation and determines the actual exposure of the employee, the maximum time that an employee can carry out dryly demarcaps is limited to five hours a day, and after January 1, 2030, the period must be limited to 2 hours a day.
As soon as the employer has carried out the required exposure assessment, there is no limit for the maximum time that an employee can carry out abrasive explosions. However, the employer must ensure I used by employees.
The permissible exposure limitII By January 1, 2030, 25 micrograms lead per cubic meter of air. After January 1, 2030, the permissible exposure limit is 10 micrograms per cubic meter.
For example, if the employees use the respiratory protection agents with a protective factor of 1,000 correctly at any time, air concentrations III From lead up to 25,000 micrograms per cubic meter are permitted until January 1, 2030. A protective factor of 1,000 would reduce the air concentrations of lead at 25,000 micrograms per cubic meter to a concentration of 25 micrograms per cubic meter within the breath knife. From January 1, 2030, the maximum air concentration for the abrasivation is 10,000 micrograms per cubic meter for employees correctly with a respiratory protection coat with a protective factor of 1,000.
The protection granted by the respirator is listed in Table 1 of Section 5144, the protection of the airways. Below is a copy of the table.
I The protective factors that are assigned to respiratory protection are only valid if they are used in accordance with section 5144.
II The permissible exposure limit is measured as an eight -hour average average concentration.
III The air concentration was measured as an eight -hour time -weighted average.
Section 5144 Table 1 – assigned protective factors 1
Type of respiratory protection 2 | Quarter mask | Half -mask | Facepie | Helmet/hood | Loosely |
---|---|---|---|---|---|
1. | 5 | 310 | 50 | ||
2. Driven air procurement grades (papr) | 50 | 1,000 | 425/1,000 | 25 | |
3. Respiratory protection for aviation (SAR) or airline | |||||
Demand mode | 10 | 50 | |||
Continuous river mode | 50 | 1,000 | 525/1,000 | 25 | |
Printing actor or another positive print mode | 50 | 1,000 | |||
Independent breathing apparatus (SCBA) | |||||
Demand mode | 10 | 50 | 50 | ||
Pressure actor or another positive print mode (e.g. Open/closed circuit) | 10,000 | 10,000 | |||
Notes | |||||
1. Employers can be the respiratory protection coat assigned for use in higher workplace concentrations of a dangerous substance for use at lower concentrations of this substance or if necessary regardless of the concentration. | |||||
2. The assigned protective factors in Table 1 are only effective if the employer implements an ongoing, effective respiratory protection program, as required in this section, including training, adjustments for adjustment, maintenance and use. | |||||
3. This APPF category contains filter support and half masks with Elastomer -Faconpiesen. | |||||
V. This performance level can best be demonstrated by carrying out a workplace protection factor (WPF) or a simulated WPF study or an equivalent test. Without such tests, all other pepper and sars with helmets/hoods are treated as loosely seated sensitive breathing apparatus and receive an APP of 25. | |||||
5. These apfs do not apply to respiratory protection devices that are used exclusively for flight. For escape respirators who are used in cooperation with substances that are covered by substance -specific standards in title 8, division 1, chapter 4, subchapters 4, 7 and 18, employers must refer to the corresponding substance -specific standards. Escape repirators for other IDLH atmospheres are given in the sub -section (D) (2) (b). |
About Cal/Osha's main standards
On February 15, 2024, the board for occupational safety and health standards approved updates of the main standards of Cal/Osha (California Code of Regulations, Title 8, Sections 1532.1 (for the construction industry) and 5198 (for general industry)). The updated regulations were effective on January 1, 2025.
The recently updated resources include:
About Cal/Osha
Within the Ministry of Industrial Education, CAL/OSHA helps to protect workers against health and security risks for working in almost all jobs in California.
The employees in California are protected independently of immigration status. Workers who have questions about security and health at work can call between 9:00 a.m. and 7:00 p.m. from Monday to Friday at 833-579-0927 to speak to a bilingual live representative of Cal/Osha. Complaints about security and health risks in the workplace can be submitted confidentially in CAL/OSHA district office.
Employers who have questions or need support for health and security programs at the workplace can call the branch for CAL/OSHA's advisory services at 800-963-9424 or their local CAL/OSHA consultation office or send an email to infocons@dir.ca.gov.
Media contact: Communications@dir.ca.gov, (510) 286-1161