AIHA does not publish an open API, so the workflow is: download the CIH active list as a CSV from the AIHA member portal (chapter officers and sponsoring firms have access) or maintain a multi-firm curated sheet. SleekRank reads either source and renders pages on the cache cycle you set, with most directories refreshing quarterly to match the AIHA CIH recertification cycle.

CIH (Certified Industrial Hygienist) is the senior credential requiring a degree, work experience, and a passed exam. CAIH (Certified Associate Industrial Hygienist) is the entry credential. The directory should differentiate via tag mapping because buyers screening for litigation support, OSHA citation defense, or expert witness work typically require CIH.

Store exposureSpecialties as an array and use a list mapping for the chip rendering. Add a secondary page group at /industrial-hygienists/{exposure}/ for per-exposure index pages. Asbestos, lead, silica, beryllium, and mold are the highest-volume specialty searches. PFAS is an emerging exposure with rapidly growing search demand.

Yes. Add a labAccreditation column (AIHA-LAP, NVLAP, none) and use a tag mapping for the badge. AIHA LAP accreditation matters because it indicates the consultant works with accredited labs, which is required for certain regulatory submissions. Surfacing this drives the right inquiries to the right accreditation level.

Add a firmAffiliation column (Ramboll, AECOM, Tetra Tech, ERM, Independent, Government) and use a tag mapping for the badge. Some directories include big-firm CIHs alongside boutique and independent practitioners. The choice depends on the directory's audience and competitive positioning.

Add an expertWitness boolean column and a litigationExperience text column listing case categories handled. Use a tag mapping for the expert witness badge and a selector mapping for the litigation experience section. CIHs with expert witness experience command higher rates (3,000 to 8,000 dollars per day) and the directory page should surface this clearly.

EPA publishes AHERA-accredited inspectors and management planners as separate state-level lists. Cross-reference your AIHA CIH roster with state AHERA lists and add an aheraAccredited boolean column. Schools and renovation projects require AHERA-accredited inspectors, so the cross-reference drives meaningful inquiry routing from school district facilities directors.

SleekRank pricing is per site, not per page. Item caching keeps render fast at 3,500 rows, and standard managed WordPress hosting handles it without issue. The directory ROI is high because engagement values range from 10,000 to 500,000 dollars and the certified consultant pool is small enough that being the canonical search result captures significant inbound volume from RFP-driven buyers.